At Odiorne Point State Park picnickers can enjoy sweeping views of the ocean and rocky shore, and explorers can uncover evidence of past military occupation. An extensive network of trails wind through the dense vegetation and traverse the park. The Seacoast Science Center, which is located in the park, has exhibits relating to the natural and human history of Odiorne and the seacoast area (separate fee).
A nice easy stroll on the coast with pretty views over the water.
Taking a walk to the bunker and looking at the historic elements of the park adds an element of interest to the walk.
I've been snowshoeing at Odiorne numerous times and plan on going again this winter. The trail is wide and easy to follow, with generally flat grades all the way through. The views of the Atlantic are superb, especially in the winter, when everything is silent (even the ocean) and still. This is a great place to look for snowy owls, which stop in Rye, NH to rest for several weeks in February during their migration north to Canada. They usually perch along the rocks or on trees near the ocean. I myself see them quite often in Odiorne State Park.
Very easy walking trail. Great views of the ocean, some historic signs and structures and a classic New England trail on "Columbus Road" (a trail that leads to the monument of the first settlers of Portsmouth) that reminds me of a scene that includes the Headless Horseman.