Boulder Beach State Park is a state park in Groton, Vermont located on the western shore of Lake Groton.

The park features 75 shaded picnic sites with tables and hibachis.

[2] Rest rooms have lavatories and flush toilets.

There is 200 feet of beach and swimming area, a cartop boat launch, play area, three large parking lots, and a concession stand.

Canoes, kayaks and pedal boats are available to rent.