Sampson’s Island Wildlife Sanctuary is a protected coastal barrier island known for its critical nesting habitats and diverse shorebird populations, offering unique birdwatching and secluded natural exploration opportunities.
Located off the coast of Eastham, Massachusetts, Sampson’s Island Wildlife Sanctuary consists of two uninhabited barrier islands that protect important salt marshes, sandy beaches, and tidal creek ecosystems. Managed by the Massachusetts Audubon Society, the sanctuary serves as a vital nesting ground for endangered and threatened shorebirds, including the piping plover and least tern. The islands formed naturally through shifting sands and currents, making them dynamic and important habitats in the region's coastal landscape. Human access is restricted, particularly during breeding season, to safeguard sensitive wildlife populations. However, visitors can observe the sanctuary from adjacent viewpoints and nearby trails within the Fort Hill area of Cape Cod National Seashore. The sanctuary’s isolation creates a refuge for migrating shorebirds and other coastal species, with seasonal visits by seals and occasional shorebird species. Environmental education and research are key components of the sanctuary’s mission, with efforts focused on habitat restoration, invasive species control, and protecting nesting areas from disturbance. While camping and direct trail access on the island itself are not available, the surrounding Cape Cod National Seashore offers ample opportunities for hiking, beachcombing, photography, and shorebird watching, especially during spring and summer. Sampson’s Island stands out as a vital coastal sanctuary where conservation and responsible public appreciation intersect on one of Cape Cod’s most ecologically significant barrier islands.
Critical nesting habitat for endangered piping plovers and least terns
Dynamic barrier island environment with shifting sands and tidal marshes
Protected area managed specifically for shorebird conservation
Viewing opportunities from nearby Fort Hill trails within Cape Cod National Seashore
Protected sandy zones on the island crucial for the breeding success of this endangered shorebird.
Surrounding tidal marshes support diverse fish, shellfish, and bird species important to the coastal food web.
The island’s natural shape and size shift seasonally due to tides and storms, demonstrating coastal geomorphology.