Yea knowing your limits is definatly good advice... i rode alone today for about an hour and a half... One thing i definatly did notice though is that i didnt ride nearly as hard alone as i would have with a buddy... I also stayed really close to the main trail of the park.. as its too easy to get lost .. Going to ride again tomorow.. but this time im going to bring my ipod.. maybe th music will help
ohh and i brought a bookbag with me today with a few extra bottles of water.. cell phone, flashlight with extra batteries, a bandanna, and a few protein bars... overall was a good experience