Come to the San Juan River Arm of Lake Powell where this canyon is closest to the Halls Crossing and Bullfrog Marinas. You can enter from the main channel at Mile 57 with a series of unique gooseneck bends. It is advisable to make sure you have enough fuel before going up the San Juan River since there are no marinas in this part of Lake. There are a couple of arches near the entrance of the San Juan Canyon. Try our guided boat tours and jet ski rentals for you vacation!