Pick up some pamphlets at Big Water Visitor Center. This place will have all the information you need to get the most out of your time in the area.
To visit this tourist information center, you'll need to find your way to Kanab. There are loads of other things to see and do in the area, including Paria Rimrocks Toadstool Hoodoos, Wahweap Hoodos, and Skylight Arch.