Jones Island State park is a marine camping park situated on the San Jaun channel. There is a trail that takes you through the center of the island and then loops around along the western shore. Enjoy views of Spieden Island, camping, and a beach. The island is only accessible by boat. Drinking water is available May through September. There is no garbage service to the park, so pack out what you pack in. HOURS: Summer: 6:30 a.m. - dusk Winter: 8 a.m. - dusk The park is open year round for camping, day use and moorage.