A roughly 60-70 acre state wildlife sanctuary filling its own island in the Merrimack River, once home to shipbuilding and a ferry landing. Today it's boat-access only, a quiet stop for hiking and birdwatching rather than a drive-up park.
Common questions
How big is it and what's there?
Roughly 60-70 acres of forest, scrub, and wetland, with walking trails and shoreline views; expect birds, deer, and shoreline wildlife like crabs, and plan around tides since it's a river island.
Is there an entry fee at Carr Island Sanctuary?
No, entry is free.
What rules should I know at Carr Island Sanctuary?
Only reachable by small boat (kayak, canoe, or dinghy); no dock or formal landing confirmed, and river currents apply near the crossing.