This is a massive forest that goes through multiple towns! Lots of trails to hike on and Pattaconk Lake is great for fishing (the lake is stocked each spring for opening day of fishing). There is a nice beach area and small pier for swimming, just be careful near the dam/waterfall area. It's also nice for kayaking, just be aware that you will need to walk the kayaks from the parking area (not too far) - there is no boat launch. Common place for picnics and dog walking as well.
Hiking, Swimming & Fishing. Samantha, Trip Advisor