The park encompasses a tidal river, a broad salt marsh, white sand beaches, rocky shores, and a large stone pavilion dating from the 1930s.

Much of its timber and granite were drawn from local suppliers and quarries and from an abandoned fish fertilizer plant on the grounds.

[7] The park is crossed by the Northeast Corridor, Amtrak's main line from New York to Boston, on a right-of-way first chartered in 1848 by the New Haven and New London Railroad.

The 36-foot (11 m) arched steel bridge has been documented by the Historic American Engineering Record, which describes it as "an unusual surviving example of a railroad footbridge.

Hiking trails lead to a salt marsh, Baker's Cave, Tony's Nose, Shipyard, and other points of interest.