Sullivan Island State Marine Park is south of Chilkat Island SMP and 20 air miles south of Haines. This 2,720-acre park sits at the south end of Sullivan Island. Two bays on east side provide access, but no anchorages. In Lynn Canal, weather and winds are unpredictable, making anchoring very difficult. Kayaks have the best bet since they can be brought on shore and have a shallow draft. Be sure to bring your boat above high tide mark when pulling it on shore. Beaches are rocky.