Salisbury Beach State Reservation is on the MA/NH boarder, campground boarders 2 beaches which you can walk to both. no full hookups, but there is a honey wagon service that goes through there.
Going to be tough to find a site before labor day. but sometimes people cancel, keep checking reserve America in the evening, I was able to find a site during prime time that way once.
Mike
2022 F-150 3.5 EcoBoost 4X4 Supercrew GCWR 19,500 157WB
Payload 2476 Maxtow 13,800 3.73 Equalizer 4 Pt Sway Hitch
2017 Jayco Jay Flight 24RBS
Old TV, 07 Toyota Tacoma, Double Cab, Factory Tow Pkg, retired towing at 229K. (Son now owns truck)