This small state park campground offers basic campsites with running water and showers, open Memorial Day to Columbus Day.  This is NOT Wolf's Den Family Campground in E. Haddam, CT. Also, be aware there are 2 campgrounds at this State Park; the other one, Mashamoquet Brook, does not offer running water/showers, so if you want these amenities, be sure to select a campsite 1-35.

There's a small playground in the middle of the loop, a number of hiking trails throughout the park along with a few geocaches (download details for offline use a phone connection is spotty), a swimming pond, and a small brook with an old mill and blacksmith shop that is sometimes open on weekends for tours. It's a nice place to explore and have a picnic. In 2020 with Covid, there were restrictions on visitors to the campground, reservations required, and swimming was not allowed. 

The parking pads are paved and a few have overhanging branches, but the trees provide  separation and some shade on largely open sites that tend to open up toward the back with open areas for pitching tents. Sites have fire rings with grills and picnic tables. Site 20 is the only one with electric. The ones toward the back of the loop back up toward the woods and give you some more privacy. 

They don't allow hammocks in the trees or pets. For some reason, silly string also makes the list of prohibitions.