Entrance is strongly drafting horizontal walking / stooping rift with some snow. From entrance, travel along passage for <5 min to reach first pitch.
Below first pitch, cross chamber and head right into tube to reach second pitch. Left leads to Windy Tube and 12 Monkeys.
Below second pitch, cross ice plug and small climb to traverse leading to third pitch (Pendulum Pitch). Pendule to rock halfway down into rift passage.
Passage starts as a meandering rift, drops fourth pitch (33m) into a canyon with a stream at the bottom (Blitzen Boulevard).
After traversing Blitzen boulevard for roughly 20m down stream, you come to a phreatic passage on the left had side above a slightly tricky climb. Following this passage onwards foe roughly 20m you reach a small chamber know as Benign Bubble Baby Bypass. So called due to the odd look formation suck in the corner. To the left of the formation you reach fifth pitch (7m) that drops into Piss Pot (so called due to how it was used during the exploration of the meander).
Piss Pot is roughly 15m in depth but ends in a bouldery choke, not worth any more exploration unless you fancy starting a dig. left of the pitch at station 7 is another meandering passage. Following this for roughly 15m you reach sixth pitch (Liquid Luck).
Liquid Luck is a roughly 25m pitch head that drops onto a ledge, surrounded by canyon. The chamber is large and fairly drippy.
Opposite this ledge is a phreatic passage that can be accessed by a traverse. The passage leads to a pitch head and a large chamber called the Urinal (also named due to its usage during exploration. The traverse above must be rigged and the descent is roughly 19m to the bottom, however the ceiling extends by roughly 20m above the pitch head and is suspected to connect into happy butterfly.
Back at Liquid Luck, phreatic development also continues South East. Traverse along the phreatic passage, into another chamber, stay high and traverse along until you are across to into the continuation of of the phreatic passage. This is the beginning of Freeattic Flys, so called because Lydia Leather is dyslexic and didn't realise it wasn't spelt that way.
This passage continues along for 30m, passing intricate coral looking formation and it a continues rifting meandering passage. There are several awkward free climbs down. Eventually you get to seventh pitch (5m) that drops into a ledge halfway down, with the continuation called Odious Odium going South East on a traverse line, instead of continuing down to the bottom.
If you do drop to the bottom of seventh pitch, it puts you into Toto chamber, So called because of the boulder in the shape of Africa. This leads to crystal crumble where stalactites lie.
Odious Odium continues the phreatic passage with eighth pitch (6m) and ninth pitch (5m). Ninth pitch is a one-bolt-wonder which puts you into a junction which continues both left and right.
Turning right will lead you toward Ulysses. Ulysses is a very large chamber, roughly 20 metres in diameter, and a currently unknown depth but expected to be greater than 50 metres. The walls around the this chamber however pretty crap. A traverse has been rigged along the right side wall, with the intension of either A) traversing half way round the chamber and dropping it to find the expected depth, or B) continuing to traverse the chamber, in order to reach the strong lead on the opposite wall, which is a massive rail way sized, continuing phreatic tunnel which requires a 20m bolt climb. This is still to be explored, however has strong draft facing SE. The chamber itself is excessively crumbly, and likely no amount of gardening will make the chamber "safe", so if the pitch is dropped, descents should be very carefully made, one by one, with awareness on very possible falling rock.
Turning left after ninth pitch will lead to tenth pitch (15m) which drops into the Shit Show. The chamber is made up of of false floor and massive boulder chokes, and is not an area to tread heavily. The way on is through a rift out of the chamber and leads to eleventh pitch (6m).
Shortly after eleventh pitch you arrive at twelfth pitch (Rubble Rumble), a significant 70m pitch into a large chamber. Crossing over a large boulder and then climbing down underneath the chamber has the final 3m hang which can be rigged from the end of the same rope in a steeply sloping passage with a lot of loose choss, which leads to a low crawl crossroads.
Left at the crossroads leads to Big Bastard, an as-yet undropped pitch expected to be 80+m in depth. Straight at the crossroads is a small crawl passage, unexplored.
Right at the crossroads leads to Miracle Maze, an assortment of sandy phreatic tubes. The first left in Miracle Maze takes you eventually to a large junction chamber. In this chamber, the right turn is a small climb up to a large phreatic development that loops back to the rest of Miracle Maze. The left turn is the downstream continuation of the phreatic tube, called Kubla Khan.
Kubla Khan continues downstream, with a floor rift joining in from the right in Avian Appendix, named after a prominent wall marking that looks like a bird. Following Avian Appendix is a horribly precarious rift which also leads back to Miracle Maze.
Kubla Khan itself continues downstream with the walking surface descending to the water level to reach a small pool (Caverns measureless to man, down to a sunless sea) which is good for having a piss in. After the pool the walking surface rises again, past a precarious mudstone arch. Eventually the water and the floor rift leaves the passage again on the right.
At the end of Kubla Khan the passage splits, a high level phreatic tube requires a handline bolting over a nasty traverse, whereas the low level goes under a crawl into a small sandy tube.
Back in Miracle Maze, the passage continues with a sandy floor, with passages coming in on the left from Kubla Khan and Avian Appendix. Eventually it reaches Eldritch Eyeholes, a chamber with two prominent round solution pockets in the ceiling which look like eyes. There are three routes here which all join back together after 5-10m.
The passage climbs out of Eldritch Eyeholes until a rift re-enters from the right at a 2m climb. Above the climb, the rift may be followed or a tube on the left taken, however the tube turns right back to re-join the rift after only a few meters. In the rift is a right turn which goes up to Coconut Chamber, or the continuation of the rift also eventually reaches the same chamber.
In Coconut Chamber, a series of narrow tubes to the left of the large rift continue, and eventually loop back to the same rift that can be seen from the chamber itself. The final lead is a small climb in the tubes which leads to an undropped pitch of approximately 10m.