Patos Island Campground is a remote 207-acre marine park accessible only by boat, offering seven primitive first-come, first-served campsites at Active Cove with picnic tables, vault toilets, and fire pits—but no fresh water. The island features a 1.

5-mile loop trail, a historic lighthouse (with summer tours), two mooring buoys, and excellent opportunities for kayaking, wildlife viewing, and paddling in the northern San Juan Islands, though strong currents in the cove require careful anchoring or use of available buoys.