Re: [20kN] Has anyone been to the Cave Of Swallows?
I've been down there twice in the last six months... rappelling and ascending out is still allowed. I 1200 foot rope with lots of anchoring and webbing will get you down. Make sure you are using a caving rescue rappel rack as a descender..... a standard rescue 8 will burn the rope in half before you ever even get close to the bottom.
If you are serious..... you should be mega proficient in open air pit rappels.... this is the one you build up to...300 ft fist...then 600..then 900.... then 1200.
As far as getting out..... we used to use a gas powered cap-stand winch , but those days are long gone. Now I'd probably spring for a rope-walker setup from ON ROPE. I've seen someone ascend out with one in under 13 minutes.
I'll be down there in March.... I'll probably rap in just to take a look around at an old familiar friend.....