Looking for inexpe full hook Santa Rosa Fl

No clue as to what kind of rig you have. I see you want to stay about 6 weeks. You could stay two of those at Ft. Pickens. It is a very enjoyable place to stay. Buy a Federal America the Beautiful pass or Senior pass and you don't have to pay the gate fees.

https://www.recreation.gov/camping/fort-pickens-campground/r/campgroundDetails.do?contractCode=NRSO&parkId=97219

Edit: reread your post. Pickens does not have sewer, just water and power. They do have a dump station.

You mention Grayton Beach, so are you referring to your friends being on the EAST end of Santa Rosa Island? by chance?

If so, Henderson Beach State Park is quite close to Santa Rosa.

https://www.floridastateparks.org/park/Henderson-Beach

Charles

passport America used to have a couple campsite for about 21 per day,in that area.