Hopkinton State Park

Hopkinton State Park is a Massachusetts state park located in the towns of Hopkinton and Ashland and managed by the Department of Conservation and Recreation. The park was created after the Hopkinton Reservoir was removed from service as a water source for the Greater Boston area. In 2010, it was named as one of the 1,000 places to visit by the Great Places in Massachusetts Commission.
Activities and amenities.
The park features beaches and a bathing pond for swimming that is physically separated from Hopkinton Reservoir, where nonmotorized boating is permitted. There are seasonal facilities for kayak and canoe rental. 
Park trails may be used for hiking, mountain biking, horseback riding, cross-country skiing, and snowmobiling.
There is also a camp for children and teenagers that teaches sailing, kayaking, canoeing, stand up paddle boarding and windsurfing.
Picnicking, restrooms, and fishing are also features of the park.