Sand Island Boat Ramp is the primary launch point for San Juan River trips, located 3 miles west of Bluff, Utah, with a full-service recreation area including a campground (27 sites, $15/night), drinking water, vault toilets, and day-use facilities.

The ramp provides access to the 102-mile permitted section of the San Juan River and can experience heavy use during peak season (April-July), so arriving early is recommended and carpooling is encouraged due to limited parking.

A BLM permit is required for all watercraft launches, and shuttle services are available for multi-day trips to Clay Hills or Mexican Hat takeouts.