Protection Island is an island lying in the Strait of Juan de Fuca just north of Discovery Bay in northeastern Jefferson County, Washington, United States. The island has a land area of 1.534 km² (379.11 acres). It is a Federally protected National Wildlife Refuge; boats are not permitted within 200 yards (183 m) for the safety and health of wildlife on and near the shores. There is only one individual still living on the island not associated with the government, an inholder named Marty Bluewater who has lifetime use of his cabin on the island's southern bluffs. The island also houses a caretaker, a volunteer hired by the Fish and Wildlife department to watch over the island, and take care of its many inhabitants.