Very high volume Slot Canyon, with an 80m entrance drop into a cauldron, with spray so feirce you might consider wearing goggles. Also a “black hole” (torches not needed) about halfway through.
Gets huge floods, so anchors are often damaged. Make sure you take a drill… Only in season at the end of a long dry summer (March).
First descent: Dave Vass, Tristran, Alain Rohr 2007.