PL2 Connection Attempt
Since last years connection between Wot-U-Got Pot and the Hirlatz the combined depth of the Hirlatzh?hle system is 1560m, making it tied at ninth deepest cave in the world with the Sistema Huautla. Also last year, a connection was made between the nearby caves of Burnies and Blood Moon. These two latter caves sit at a higher altitude than WUG, with the entrance of Burnies sitting about 58m higher than WUG. Less than 60m separate WUG and Blood Moon, with several leads heading from Blood Moon toward WUG.
Higher still is the cave of PL2. This is a classic Dachstein cave - cold, drafty, narrow, hard, and generally unpleasant. Originally pushed in the late 80s by a Polish expedition, the cave ended in a 100m free-hang into the largest chamber in the Dachstein, lying only a short distance away from WUG. A large branch passage exists from WUG heading towards PL2, and re-surveying last year positioned the end of this passage at 40m below and 20m away from the end of PL2, with a high-level continuation visible from the foot of an aven.
The connection with PL2 would add some 78m to the depth of the Hirlatz, positioning it as the world?s sixth deepest and Europe?s second deepest cave system. Pushing PL2 Passage from WUG was then one of the main focus?s of this expedition.
Mid-way through the expedition a team of Jean-Paul Sounier and Sylvain Furlan pushed this passage. Aid-climbing up the aven for 8m, they climbed an ascending canyon reaching a large chamber some 40m long by 15m wide. At the very end the draft emerged from the foot of a boulder run-in, with no way on apparent. A few days later Tom Foord, Tom Chapman and Nadia Raeburn-Cherradi went and surveyed this extension, and in conjunction with a surface survey between the WUG and PL2 entrances, this indicated that the two caves were separated by as little as 10m. They looked at the choke and Tom F had been able to poke his head in enough to see black spaces just above the underside of the choke. Without tools they hadn?t been able to do any proper digging, but it was felt that the choke might be a short one, and with a bit of luck it might be possible to collapse the boulders and climb upwards into the PL2 chamber.
So, on Tuesday morning Joel Corrigan, Tom Foord, Christan Vogel (Wolfo) and I set off on a camping trip with the hope of connecting WUG and PL2. Laden with gear, including a huge 1.2m long crowbar we made sluggish progress down to the bottom of the ropes at -580m. Ditching our camping gear, we made off into the huge horizontal tunnels that make up the majority of WUG. After a half-hour tramp up and down over boulders we reached the turn-off for PL2 passage. This passage was originally pushed by Joel Corrigan and company some 8/9 years ago, and started off as a series of short upward rope pitches separated by sections of muddy horizontal passage. The third of these climbs is particularly awkward, being a dismal trudge up a mud ramp while struggling to move jammers on the greasy rope. Lord only knows how Joel climbed this originally. At the top is a squeezy boulder choke, which finally pops up into another big horizontal borehole. Unusually for WUG this passage is filled with old muddy flowstone, with some big pillars and stals visible. Some of the old calcite is disintegrating into fine calcite needles, which sit in the mud and make it remarkably clumpy, wellies can swell to three times their size within a few steps.
Up Jean-Paul and Sylvain?s ropes we went, skinny 8m bootlace rope, exactly what you want when you are completely caked in mud. We reached the chamber after some 10-11 hours of hard caving. While Joel and Tom set up a stove to make a hot meal Wolfo and I started prodding the choke. The first few boulders were easy to drop out of the roof, enough to reveal that the black spaces were just more voids in boulders. The boulders seemed to continue up, tightly packed for several metres. After 5 minutes it was apparent that we weren?t breaking through, but since we?d come all this way we continued on making increasingly futile progress for some 45 minutes. Caked in mud and frozen by the powerful draft, we gave up.
Joel and Tom had enough energy to climb a nearby mud slope and drop a tight pitch at the far side. This dropped into a small chamber going nowhere. Other drafts were followed into chokes in the floor, but there was nothing happening. We started the grim plod back down the passage. At around six in the morning we arrived at camp, then began the chores. Gathering water from camp was a particularly unwelcome task, involving hauling water drums up a series of awkward climbs and pitches from the foot of a drippy waterfall. Finally at 10 in the morning, as Europe set about it?s day, we went to bed with over 18 hours of caving behind us.
Waking at 4pm, we spent the day sorting gear and closing up camp for another year. The WUG camp is a fairly pleasant space to while away the day, once you?re dry and active it?s fairly warm. Also, a bit of music makes it a much more homely space. At midnight, we set off for the surface, collecting various bits of kit along the way, arriving on the surface to morning sunshine.
Sadly, WUG remains at the same depth it did at the start of the exped. We?ll continue to push both Blood Moon, Burnies and PL2 in search of a connection to a higher cave. Who knows, perhaps pushing from above in PL2 will reveal something not obvious from below in WUG?
- Petie