Subject: Re: Canyonlands &Canyon de Chelly
The drive out to Spider Rock along the South Rim is about 16 miles. I would think bikes are allowed. Unaccompanied hiking is only allowed on the White House Ruin trail. All other hiking in the canyon requires a guide. See the websites at:

http://www.nps.gov/cach/ and http://www.nps.gov/cany/