There are two ropes at the ladder pitch – make sure you use the lifeline (the one closest to the ladder) and not the hauling line, which is attached some distance away from the ladder at the top. The first part of the ladder climb is straight, leading to a balcony, after which it has a middle section at an awkward angle before the next straight climb to the top. The easiest method to climb this is to get off the ladder at the balcony then on again after the kink. Be sure to clip into the safety lines at the top with cows-tails before detaching from the life-line and use the chain loop to assist getting off at the top. Any tackle can then be pulled up using the hauling line on the other side of the pitch, cross behind the boulder to get there and clip into the safety line before hauling.
The way on is straight ahead from the top of the ladder (the passage heading off on the other side ends at a choke), the passage meanders briefly before reaching a short drop down with a fixed handline to a roped traverse around the head of the 22 metre pitch above White Passage. Descending this was once the only route to the rest of the cave, but now we traverse along the right-hand wall (cows-tails recommended) then continue on as the passage lowers to a crawl over boulders. Look for a crawl through a low tube on the left-hand wall (there's a vague line of stones just beyond), this is the way on as continuing further leads to a choke. After the crawl, a short climb down leads on to the rope climbs. The first is in 2 stages, with fixed ropes in place to assist the first drop down to a ledge, and knotted ropes for the short climb down the wall below. This is closely followed by the next short rope climb down to White Passage. Note carefully the location of the rope climbs as you enter White Passage – it is easy to walk past them on the way out!
From here on it’s all easy walking and boulder-hopping in huge cave passage. Follow the stream down the passage (the other direction ends at the huge boulder choke bypassed by the 20m fixed ladder). Climb over the large boulder pile and continue along with the passage becoming increasingly larger until, after another boulder pile, it meets the Time Machine with red and yellow arrows at the entry point. The yellow arrow pointing left is the way on, while the red arrow would take you to the Source of Time and the ongoing dig at the end. Reflectors are put to good use throughout The Time Machine to denote the optimum route through this wide, boulder strewn passage with fine gypsum crystals throughout. Follow these reflectors for the easiest journey through this part of the cave. Eventually, at the lowest point of the passage, you’ll notice a sandy balcony reached by a short climb on the left-hand wall. This is one of the routes to The Meeting Room and the point that you’ll be returning if you follow the short loop route back. Continuing down The Time Machine soon leads to a narrow path on the left-hand side of the passage and shortly after the climb down to Bonsai Streamway is reached. This is also marked with arrows, with yellow pointing to the descent to Bonsai on the right (the main way on to the further reaches of the cave), and red heading straight on to the end of the Time Machine a short distance further.
As the Time Machine is the final destination of this trip, you need not continue any further, but there is the option of a short loop for variation on your return. This only avoids a short section of repetition, but gives a peek at some of the interesting passages above the usual route. To do this, follow the red arrow to reach a boulder run in on the left. Ascend this with care, looking for wear on the rocks indicating the most travelled and safest route through. This emerges in Beyond Time, at the bottom of a boulder slope. Here you should again take the safest route up over boulders to the left to reach a passage heading back towards the Time Machine (while right continues for some distance over boulders before ending in chokes).
The passage roof briefly drops down to crawling height, before regaining height and meeting larger passage at The Meeting Room. Head left here (straight ahead leads to a small interesting chamber accessed by a short flat-out sandy crawl, while right is Nameless Canyon leading to Aggy Passage and Half Mile Passage) and follow the most worn, taped route as the passage size increases and becomes sandy floored, reaching a wide balcony with a view down to the Time Machine. Follow the path to reach a short climb down next to a boulder, then simply follow the reflectors to regain the main route and head back out the same way as you came.
Written by Adrian Fawcett and Mandy Voysey (2022). Photos by Mark ‘Gonzo’ Lumley and Steve Sharp.