Horn Island, Petit Bois Island, and East Ship Island are open year-round to private boaters. West Ship Island is open to private boaters from sunrise to sunset. The two miles of the western tip of Cat Island are within the Seashore boundary and are open to private boaters. The islands are not accessible by automobile. Visitors to the Seashore’s barrier islands can enjoy island camping on all the islands but West Ship Island. Other activities include beach combing, birdwatching, swimming, and fishing. A passenger ferry, located in Gulfport, MS, takes visitors out to West Ship Island March through October.