Three Rivers State Park offers two small boat ramps suitable for smaller watercraft—one located within the campground for registered campers only and another near the picnic area for general public use.

The park also features a 100-foot fishing pier, campground facilities with water and electric hookups, and a day-use picnic area with pavilions overlooking Lake Seminole.

Additional county-maintained boat ramps accommodating larger craft are located on the eastern and western boundaries of the park for those needing larger launch facilities.