Last I knew you could also beach camp at Sandy Neck on the cape. Same as the national seashore, you need a permit and properly outfitted vehicle.
For AT the beach camping, a opposed to on the beach, you can check Hammonasett and Rocky Neck State Parks in CT. Last I knew there were no hookups at either. Also Scusset Beach and Salisbury Beach State Parks, I believe both have some hookups.
Some of the sites at Wolfs Neck Oceanfront Campground in Freeport ME are, as stated, oceanfront. Been a while since we stayed there but I think some of them have partial hookups.
Happy Motoring
Bob & Deb
W Ma.
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