You just can’t go wrong  with a KOA campground. His place in Niantic Connecticut very close to downtown and the beach which they have a shuttle for. The staff is very friendly, courteous and knowledgeable of the area. Plenty activities for adults and kids and they are putting in a new swimming pool which will be up middle of July . They have spaces for 10 sites and up (I would call to see if you can fit if you have a larger rig ) very easy to get to write off I-95 even though you’re close to I-95, I could barely hear the traffic. I heard, crickets and birds before traffic.