Montauk County Park offers outer beach access and outer beach camping, seasonal hunting, salt and freshwater fishing, hiking, horseback riding trails and canoeing. On the County Park property the Deep Hollow Ranch has available popular horseback rides to the beach for park visitors. Also in the park is the historic Third House utilized by Theodore Roosevelt and the Rough Riders. There is camping for self-contained trailers and campgrounds for youth scout groups. The park is dog friendly as long as dogs are kept leashed.

Montauk County Park was created from a series of land acquisitions by Suffolk County beginning in 1971. The parks boundaries extend all the way to the north shore from Oyster Pond, around Shagwong Point to Gin Beach by the entrance to Montauk Harbor Inlet. The park includes:

The Third House Nature Center is located at Third House. Staff of the Nature Center coordinates nature programs, hikes and activities for people of all ages. For information about their organization or their events, please visit their website at https://www.thirdhousenaturecenter.org/