Saturday, September 6, 2014

Into the Blue...

Rich in Perdreau sump 1
Today was an excellent day - but not without a few teething troubles to get around first.
I picked up a missed call from one of my work colleagues, who was asking where I was. France, was the reply. It seems the great shift screw up had raised its ugly head again, but I doubt I have much to worry about as I am certain I booked this leave. In fact, I booked it in January. So, I tried to forget about it and concentrate on the cave diving.
We headed up to the cave and Jean had brought more friends along to help us. They were practising their SRT in the cave which seemed as good a reason as any to come along. 
Pitch in Perdreau
Rich and I dropped the pitch and started to get our gear together. Next problem, Rich finds the team spare mask has shattered into hundreds of tiny pieces. It had been in a pocket on one of the harnesses and not protected by a French Pot and had somehow got broken. Never mind. We can live without it and we have another anyway.
The sump is blue and inviting. I get the camera ready and Jean and friends watch us set off into sump 1, before heading out to the sunshine to await our arrival. We tell them we will be 2 hours at most.
Surfacing in the airbell shortly after passing sump 1, Rich and I can't really get our act together and we soon notice a little panting going on. Carbon dioxide. Great.
We take things slowly and rig the ladder, before hauling the 12 litre bottles up and getting everything into sump 2.
Arianne abseiling
Kitting up in sump 2 was fairly easy this time around and I get ready with the camera. We have a plan to shoot some video of the sump, especially our discoveries from 2011 and 2012. We don't hope for much as it is a small, fiddly sump covered in powder-like silt. But we gave it a go.
We get shooting and with plenty of time and gas, get to photograph and film everything we want to.
Then, we had one last job to do.
There was one bit of a chamber left to explore. I had always had a feeling there was more to it than just a boulder pile. So, I dispatch Rich off to take a quick look and a minute later he returned to say it was "Going".
Woo hoo!
Sump 1 Perdreau
Rich kitting up
Line reel tied in and I sieze the (rare!) opportunity to film exploration in progress.
Rich swam along with his reel and made some nice tie offs and the cave started to head downslope in a fractured, friable passage. It was sculptured and pretty and the water ahead was azure blue.
Chris kitting up in sump 1
Behind Rich it was patchy, rust red and bits and pieces rained down from the roof as the first bubbles ever disturbed the rock.
As the visibility went to zero, I paused at 24m and heard Rich scratching around. I figured he wouldn't be long and steadily, hand over hand on the line, fumbled my way back to the tie off with Rich just behind me. 
Happy, we thumbed the dive and had a pleasant swim home in patchy visibility. I stopped to photograph a worm, the type I had not seen before in a sump.

Surfacing back at the airbell, we de-kitted, pleased with the days work. 
Not surprisingly, after a recent chest infection and a cold, I had some trouble descending back into sump 2 to get home. Fortunately my bottle of trusty Otravine got me to depth but wasn't keen on getting my sinuses back up again.
Chris and Rich talk cameras
It's a divers worst nightmare (well, one of them anyway) and despite hanging around on the way up trying to get my sinuses to let go, it was obvious I was going to get a reverse block.
I did and it hurt a lot, making my eyes water and temporarily blind. Rich took my bottles off and I eventually heard the relieving squeak, followed by some blood and the pain subsided. Not pleasant.
Jean was at the top of the pitch waiting for us as we surfaced. He was worried as we were half an hour overdue. This was probably due to our taking our time in the CO2 ridden airbell. We apologised for worrying him but he didn't mind and we showed him our photos to cheer him up.
A gang of cavers had showed up to help carry all the gear back in one run, including a very small child who was lugging 2 tackle bags and going better up the hill than I was!
A cold beer in St Jean de Bueges followed by pizza in Laroque seemed a fitting end to a very pleasant day, all things considered. Finally things are going our way.

Chris kits up

Rich at the 2011 junction

Chris and Rich get ready to dive
Rich in the 2011 passage

Rich in the 2011 passage, Perdreau

Rich descends into the passage he and Christine found in 2012

2012 passage which descends to 34m

Worm in sump 2 Perdreau









Friday, September 5, 2014

Perdreau set-up day

I decided that embarking on Garrel today would be a silly move. Still with remains of a chest infection, the caving trip, though moderate, is quite long and I am still quite weak, so we decided that the Perdreau-Fourmi was a more pleasant option.
Dragon flies at the Source de Bueges
True to form, Jean Tarrit rallied a few friends from his club and they arrived to help us carry our gear in two journeys up the riverbed. 
I headed through the entrance squeeze and into the cave to start rigging the 45 degree slope and 15m pitch to the sump pool. 
Fairy lights at camp centrale
I decided to bring walkie talkies this time and was quite surprised that I was able to communicate from the sump pool to the surface! 
Job done in a few hours, I headed over to the Source de Bueges, which sadly cannot be dived. Some pretty dragon flies were in residence.
We had some nice cold pressions at the local watering hole in St Jean-de-Bueges and headed back to the campsite to sort out cameras and have dinner.

Thursday, September 4, 2014

Mr Bricolage, Bungee and Fairy lights...

I still sound like an asthmatic donkey..improving, but not fast enough for Garrel this Saturday. It is 8 hours of honest caving with diving gear and I'm just not well enough to do it justice.
So, I called Jean last night and we agreed to put the trip back until the 13th. Hopefully I will be bouncing around like Tigger by then. Hopefully.
The Event de Fourmi Perdreau however is a much easier trip. It is still time consuming, but it is more familiar to us and the hardest part is on the surface getting kit to the entrance. We opted for this instead on Saturday.

Knotting line. My favourite.....
Meanwhile, at camp centrale I have been getting complaints that 'It's just not the same without the fairy lights'.
I usually bring a string of outdoor fairy lights to drape around the pitch. It makes it look pretty and also helps us to see in the dark. 
We didn't have any this year so we headed off to Mr Bricolage in search of fairy lights and some bungee for our sidemount harnesses. The bungee was getting a little old, pathetic and in one instance, missing altogether.
We found the bungee OK, reeled off 5m and cut it ourselves - only to get told off at the till.
Then we asked for fairy lights. Hmm. The ones on offer were quite expensive outdoor lights a little OTT for the tent.
Once at the till getting dirty looks from the cashier wench, the shop floor woman comes trotting over to us waving some lanterns on a string. They'll do!
Then we tried to find some mozzy repellent as we are being eaten alive...
We then tried to find a nice little swimming beach for lunch, but unfortunately headed the wrong way up the Herault river towards Le Vigan. The river was shallow and grubby, so we headed back nearer the campsite and went wild swimming further downstream.
Well, I say wild swimming. We did one width of the Herault river, dodging lovely blue dragon flies and trout everywhere.
My lungs screamed in protest at being plunged into cold water and the wheezing donkey was back. 

Back 'home' and Rich has cooked a lovely spag bol. 
Our sum achievement in the last 2 days has been getting gear ready for Garrel - then undoing half of it and getting it ready for Perdreau. 
Let's hope for better luck this weekend.....

Tuesday, September 2, 2014

The seven hour lunch....

We arrived at the camp site in one piece yesterday. The tents are up (one for us, one for the gear....) and shopping done.
I'm still sick with some sort of chest infection off the back of a cold, so today we tried to take it easy.
I had a phone call from my good friend Jean Tarrit to tell us he was coming to our campsite and we were to have lunch at his house in Larzac to discuss plans for the two weeks.

Fuelled with coffee and coughing like a donkey with asthma, I was driven via some stunning scenery to Larzac - the long way round as the Gourney's are closed for repair work in the Vis gorge.
The drive took ages but we finally met up with Jean and headed to his house.
It was a beautiful, typically French rustic country home with big beams and huge fireplaces. 
We were spoiled from the outset with several courses, including crevettes (shrimp), magret de canard, sautee potatoes, salad, bread, cheese, tarte au poire and a 12 year old Bordeaux.
Many hours later we went for a short wander to take a look at the view over the Larzac plateau which is cave hunting heaven.
Back at the house, we discussed the geology of the caves we were pushing, fault line directions and made plans for the week. Rich let out the occasional snore as he nodded in the armchair.

The plan is to go back to Garrel on Saturday but this depends on me being well enough and we can put it back a week if we need to. 

Tuesday, August 19, 2014

Herault 2014 here we come.....

Well, almost......

We gave last year a miss, due to a haphazard team and being fairly disorganised re not at all ready, ourselves.
We're back this year to take a look at the end of the caves we pushed in 2012 and to maybe take a peek at some new ones the French cavers are promising us.
Our team has disintegrated - owing mainly to half of them doing responsible things like getting jobs and going to university - and Rich and I buying a house together, which meant that I wasn't exactly forthcoming on getting the trip 'out there'. 

It matters not however, as Rich and I are owed some quality time. The fact that quality time will be underwater and covered in mud, is by the by.......
We'll be met by the usual French suspects and I am very much looking forward to catching up with Jean and the gang - they always greet us like long lost friends.

Preparation began yesterday when I did a 9.5 hour round trip (not even a whole ambulance shift!!) to the Peak District to collect the CDG Derbyshire Section compressor. Last years comrade Tim Webber thankfully showed up to help me carry it up the hill to my van. 


Rich is conveniently abroad and will not show up until the day of our departure....
So today, I spent a lot of time in the garage trying to find things and make them work.
First off was the 'exploratory box'. This is a very important box.
It contains line reels, complete with knotted line which magically knots itself all afternoon at 3m intervals and has tags every 10m. It also has snoopy loops, line markers, compasses, wetnotes, waterproof pencils and so on.
Now, nobody likes a floppy helmet. Least of all Rich, who has been moaning and whining about his floppy red helmet for over a year now.
So I bought him a new one. 
Well, I actually first of all tried to glue the offending part where the cradle had snapped off, but I was concerned that after a week or so of sump bashing it may go back to how it was before = more whinging.

So, I took to the drill, made some holes - and some mistakes - but got there in the end.
One shiny new helmet. Anything for a quiet life.......

Sunday, January 6, 2013

"Has anyone seen my eagle?" by Rich Walker



The Aven de Rouet looks like a goer on the survey. A straight down shaft to about 70m, and then ongoing horizontal passage. It’s right next to the road as well, so why the hell haven’t I heard of it before? Needs a look, I think to myself.
 
Christine and I headed over to the site on Monday night to confirm that the cave was where we expected, and to look at how we’d need to get the gear to the water. We’ve learned that nothing is easy here. Sure enough, 30m from the road, across some flat ground, we find a bloody great hole in the ground. It’s about 10m in diameter, and dropped to depth of about 20m, where the water was. There was a steel gantry jutting out over the top of it, and this looked a perfect point from which to lower the gear. Two steps away was a steel ladder down to a small gravel platform perfect to stand on while suiting up. This was looking too good to be true, so how come I’ve never heard of this place before? Weird. Needs a look.

We got up almost before lunchtime on Tuesday and started blending gas. 15/55 for me, Christine and Andras, and a couple of deco gasses for good measure. Tim and Jarvist were going to have a play with some trimix too on a short dive after ours. Blending was creative, as ever, in these sorts of places but we all ended up with something useable in the end. We loaded the cars, and sent Tim and Jarvist to set up the pulleys and ropes while we ate lunch. Seemed reasonable to me. All the time I’m thinking “why haven’t I heard of this place before?”.

We arrive at the cave to see Tim stood on the gantry with an elaborate network of slings, carabiners, stops and pulleys dangling over the edge, and Jarvist at the bottom explaining how things will bang into the wall as they descend. The fiddle around a bit, make some more complications and we have a working 3:1 pulley system, with a releasable deviation, which makes it go round a corner. It’s so easy, I still wonder why everyone doesn’t dive here, and why I haven’t heard of it.

We lowered the gear down (OK, Tim lowered the gear down) and Jarvist makes a neat pile of it in the pool, and we three head down to the water like professionals. Andras starts screaming when he sees the toad in the water. Apparently he doesn’t like them. Christine wanted to kiss it, but I reminded her that it needed to be a frog for that to work. We put on our gear and did our checks floating in the water, and remarked that the blue water had gone a bit mucky with our movements. I was sure it would clear out below us though, and said so like someone who knew what he was talking about. So far so good. I still can’t believe I’ve never heard of this place - it’s such an easy site.


We descend, Christine in front, Andras and then me. Following the line through the surface muck, and sure enough, the water clears and we are treated to pale limestone walls and a vertical passage. It’s not very big, I think. No matter, I’m going to drop these decompression cylinders pretty soon and then the clanging will stop. The Oxygen gets dropped in a small (1.5m round passage), and hangs on the line that has a convenient loop in it. Someone has clearly been here before and understands that you need to drop gear off. The line turns into 9mm climbing rope, and continues to drop vertically through the pretty, white, cave tunnel. Which is still no more than 1.5m across. We are three divers, stacked vertically. There is some difference in approach to dropping down. I prefer the head down and swim, while the others seem to prefer some sort of feet down, reverse climbing strategy. The 9mm rope gets replaced by 5mm stainless steel cable. This is an odd choice, I think. I’d hate to have to cut that if I got tangled in it. Still, visibility is good, and the line well laid. Still don’t understand why more people don’t dive here, even though it’s a bit tight. More gear gets deposited and we start to descend. 30m, still nice clear water, pretty passageway, small. 40m, same. 50m - the rope ends. Quelle horreur! There is some old thin cave line arranged into a not-so-neat birds nest, with ends trailing out of it. Christine decides that this is too deep to be arsing about laying line in a tight passage with potentially much more loose rubbish beyond, and we reverse our direction back towards the surface. Shame, it’s a nice looking cave and I’d have liked to see more of it. Can’t understand why I’ve not heard of it before.

Bubbles. Seemingly innocuous things. Children make them with soap and play with them for hours. They are in beer and champagne. They could be considered to be fun things in some quarters. In a cave, they tend to float up along the walls. If those walls are covered in a fine layer of silt, such as you might find in a cave that was not well travelled, then the bubbles dislodge the silt and rapidly reduce the visibility. If that cave is vertical, then those bubbles do that all the way to the surface, getting bigger all the time. In fact, Jarvist and Tim were watching the pool while we dived and said that it turned into a “muddy silty vortex” within minutes of our departure. They elected to not dive.

Meanwhile, back in the water, the visibility has dropped to something like tea with a splash of milk. Never mind, it’s a vertical cave, and we have a big 9mm rope to follow. We wriggle and turn our way back up the passage and soon arrive back at the 21m stop. We all managed to switch gas, not that it was really needed given the short dive, and continue out. Lots of gear plus steel wire. Nice. Fortunately only a few minor hang ups, and we’re soon at the oxygen pickup, and ready to head out. At this point, Christine decided that she didn’t like it anymore and managed to reverse the team order. Exactly how, I do not know, but she and Andras got past me in a 1m wide tunnel. Andras claims that it had something to do with Chris grabbing his testicles in a modified “touch contact signal” for “move”. He moved. Like a rat up a drainpipe. We surfaced exchanged a few “pleasantries” and decided to get out. I’m starting to understand why I haven’t heard of this place.

Then the fun started. I looked up to see 2 locals stood on the gantry waving. Cave diving is often a spectator sport, in the same way people like to watch car crashes or why Romans went to watch criminals get eaten by lions. Turned out that he was a local caver and had been in there before. Best to not do it with lots of people, he said. Visibility gets bad apparently. Well, they were nice and we chatted for a while. They left and enter local no. 2. His communication was less easy to follow. Basil Fawlty probably taught him how to talk to foreigners. Speak louder and faster when they don’t understand. Get more frustrated. Speak louder and faster. He wasn’t angry, although he did look like a farmer, and therefore liable to say “quitter ma terre” at any point. Probably loudly. He mentioned that he had a similar hole on his land. Bottomless, apparently, and if we wanted to go and dive it, we’d be very welcome. “Just like this one?” we asked - “Oui” came the reply. “Merci Messieur, mais nous partons demain”. He wandered off to shoot something. More gear came up the magical winch thing. Then two girls get out of a car and start running over towards us. They are flapping their arms and waving at us. “avez-vous vu mon aigle”, or “Have you seen my eagle?” To help with translation, they were flapping their arms and cawing as well. Seemed obvious to me. I was tempted to say that it had grabbed my pet toad and I was very upset, but my French isn’t good enough. They seemed very upset, and continued driving around, looking for their eagle.

We stopped for Pizza in Laroque on the way home, which is a lovely way to end a days diving, eating nice food watching the river run, and wondering why nobody dives in that cave.

Grotte - Exsurgence de l'Avancas - by Jarvist Frost


Initial Descent
A 'nice dive' and 'not a toilet'. Well.


Finding it was easy enough - left outside the campsite, past the beautiful stone bridge and first right just beyond, admire the strange deserted country mansion with 'princess bedroom' towers at the four corners, and past the parking area with the exposed mud bands. 'Risk of innodation' say the signs, and a small concrete ford built into the road - upstream here is the cave. Grass parking 20m beyond on the right, and a path leading up to the (dry) river bank, terminating after circa. 30m total from the road in an obvious cave entrance & flood resurgence. I carried my gear up in flipflops, soon realising that I'd left my wetsuit (& fins, regulators) back in the campsite. I return to find my cylinders magically transported to the sump - perfect timing.
The carry into the cave is pleasant, perhaps 50m of passage. Entrance is a boulder slope, constantly collapsing but negotiable with care. Cave passage is mainly walking height, with a spot of stooping. Plenty of space to get kitted up just before the sump, which was for us a pool about 3m across and 7m along.

Initial Junction at 6 metres depth
Silt stirred by first diver
We followed the SRT line down into the sump to achieve 6m depth at about 12m from the start. Here there was a branch, SRT line doubles under the roof to the left, and thin white line beckons onwards. Tim pegged the line out and stood aside for me to pass onto the thin line. The cave is indeed beautiful, and the passage fine. However, it's also extremely silty - there's puddles of ~5cm deep incredibly fine brown stuff everywhere.
Entering tight phreatic at ~40m line length
Pristine view of first diver at ~60m line
In this early section I saw some curious insects - the first had the cross section of a cuttlefish, opaque white and perhaps 2cm along. Another was some form of shrimp, but large and seeming to impersonate a seahorse, with flashes of orange and purple in the translucent body.

The passage was spacious to begin with, but soon passed via angular cross rifts into narrow phreatic crawls with aesthetically pleasing but very sharp and catchy veins of calcite. The 50m point is marked by a labelled arrow. The phreatics would be a low crawl in a dry cave, and there is precious little that can be done to avoid stirring the vis. There is not room for a frog kick, and best seemed to be pushing with fingers off the relatively clean wall.

Shortly before surfacing in airbell - pristine visibility
Start of ascent into airbell, typical of transition between phreatic and cross rifts















At a cross-rift phreatic elbow, Tim caught up with me and signalled to overtake with the camera. Now I got to enjoy the poor vis! I really have no idea about the further passage, other than the film footage Tim recorded. It ends in a cross rift that takes you up to an airbell and an easy lurch over some wedged blocks.

Tim and I were here with approx. 7 mins dive time. Andras was notable by his complete absence. After ten minutes we decided that though we were almost totally certain he was OK & had backed off in the poor vis, if there was a problem (he was in a dry suit, the cave was tight and snagey), we'd rather try to sort it with large gas margins rather than go further first.

Typical sound belay
Surfacing in the first airbell (90m in)
I followed Tim out, I could mainly sense his presence (and slow down a bit) not by seeing him, but by noticing the vortices his fin strokes had left in the brown swirls. Vis was below 10cm in sections (mainly the phreas tunnels). At one point I could not read my long-hosed gauge (the short one I could not even get close enough to see). The line was fine to follow out in such conditions, but worryingly thin.

Conditions on dive out
Back at S1, Andras was present & fully dekitted, having decided to back out after having lost contact with us, finding himself in passage too small to turn in with no vis.

Tim and I decided to dive down the SRT rope lined route, which we believed would gain a dry route running parallel to S1. The SRT line branches off at 6m, seems to go under a rock obstruction or two and then directly surface in a small chamber with a V-shaped cross section and absolutely choked with knee-deep mud. The primary belay was via a loop of climbing rope to a piton hammered into the central fissure. There were pieces of a rusted-apart electron ladder near the top of the chamber, the climb up to the right (+3m) into the passage was not attempted as the 45-degree inclined rock shelves were smeared with mud.

Cleaning mud from regulators before diving out from 'SRT line' sump
We dived out in essentially zero vis conditions. The SRT line was comforting in its thickness, though at the junction the thin line leading off forms a bit of a trip hazard. Via a short interlude posing for photos, we exited for tea and medals. Carrying cylinders directly out still attached to harness was found to be fine.
The entirity of what was seen on the dive out of the 'SRT line' sump
Certainly one to return to, though solo diving and leaving the first sump to settle a little for the return would be more ideal. See CDG dive report C.D.Westlake 14-8-11 for a description of the bits beyond.
Jarv