Medeiros Campground offers primitive camping along the southern shoreline of O'Neill Forebay with a limited number of fire rings, shade ramadas, and tables available on a first-come, first-serve basis.

The campground provides drinking water at 3 locations and chemical toilets, making it accessible for both camping and water recreation, though amenities are minimal compared to developed campgrounds.

All boats must be removed from the water by sunset, and a boat ramp is available at the nearby San Luis Creek area for launching onto O'Neill Forebay.