Brain Droppings

So just got back from another couple hours of hiking. I didn't go as far as I did last time, but that's okay. I want to go back Wed and Fri of this week, as well as Mon and Wed of next week, in preparation for my caving trip so don't want to overdo it and have Evil Knee attack. I've got a good loop path figured out now -- I hike 1 mile up the switchbacks of La Luz trail, then veer off to a steep but shady path that eventually connects back with La Luz. Not sure how far the path I take is (when I unpack my GPS I'll take it with me and find out) but today it took me about another hour or so. It's about 2 miles back down La Luz to the parking lot. It kicks my ass right now, but I know I'll get better. Just gotta stick with it and not overdo it.

So -- you cavers: I'm getting my things together for the trip. I've done some bullshit little caving before, but nothing like this. I've got a pair of rock climbing gloves I'll be bringing and will, of course, be in jeans and my hiking boots. I assume I want long sleeves? Also, they say to bring kneepads. I'm guess they mean the hard ones you can buy at Home Depot or wherever, right? Also, our only light will be from headlamps and flashlights. Is it worth it to bring a camera or will I just wind up annoyed at having any extra crap to contend with and/or be worried about damaging it? Should I bring a small shoulder or hip bag for camera and water?

Help!