Replying to Beach Camping

I know this would prolly be better in regionals, but I wanted to get a mass audience just in case someone is in the know outside of NH.

I'm looking for a rad place to camp near the ocean in New Hampshire ( or even Maine). I've seen a few camp grounds but none of them look that enticing. I just wanna be able to park my Camper somewhere secluded. I don't care if I don't have electric hook ups or not. Literally looking for somewhere within a short drive of the seacoast.

If anyone has any leads or local knowledge hit me up.