South Esther Island

South Esther Island State Marine Park protects the southern portion of Esther Island in Prince William Sound. The 1,200-acre marine park provides wilderness anchorage and shore access in the western Sound. The island offers a destination for boaters exploring the area accessible from Whittier.

The island and surrounding waters support typical Prince William Sound wildlife including harbor seals and sea otters. Black bears inhabit the forested island, and eagles nest in tall trees. Salmon enter island streams during spawning runs, attracting predators.

Coastal rainforest covers the island, with Sitka spruce and western hemlock dominating. The understory features devil's club, salmonberry, and ferns. Intertidal zones display marine life revealed at low tides.

Esther Island was shaped by glacial erosion during the ice ages. The surrounding Sound displays the complex topography of glacially-carved fjords and islands. The 1964 earthquake affected the area, causing uplift that is still visible.

Maritime climate brings mild temperatures and substantial precipitation. Weather can change rapidly in the Sound. The island provides some protection from open water conditions.

Chugach peoples utilized the islands of Prince William Sound for generations. The Sound has been important for commercial fishing and later recreation. The 1989 oil spill affected portions of the area, with ongoing recovery.

South Esther Island State Marine Park was established to provide public access to this portion of Prince William Sound. The park offers a wilderness destination within day trip range from Whittier.

Wilderness anchorage and shore exploration are primary activities. Wildlife viewing includes marine mammals and bears. The island provides a base for exploring the western Sound. Kayaking offers intimate exploration.

The marine park provides anchorage and primitive shore access. No developed facilities exist. Access is by boat from Whittier or other Sound communities.

The marine park protects island environments and contributes to Prince William Sound conservation. The park helps maintain wilderness character in the accessible portion of the Sound.