Jeff, from the canyoneering section took a trip with a Grotto member to the cave two months ago and here is his journey.
Jeff films everything with his GoPro and films his adventures from Beginning to End. And for that reason, a lot of of is sped-up. But it makes it easier to watch (and some may get motion-sickness lol :crazy:)
Enjoy!
http://www.youtube.com/watch?v=uUQX1-EpiBg