I think if the Game Warden wants to get picky tires need to be atleast 20 psi on the beach. If they aren't then he might get that carbon copy paper out on ya if he's having a slow day. Gotta get an ORV Pass too these days... some places it's def required like in Corolla I think?... Hatteras I think it's just a suggestion.. but yea 15-20psi and keep it in the ruts
wouldn't worry about it rolling the bead off at 15-20, it'll just look scary. I wouldn't try 10-15 though, def roll her off.
side story:
Back in College i aired the old Jeep back up at Frisco Rod and Gun.. That air compressor is helluva unit. I didn't have my gauge with me so just eyeballed it and got the shoulder of the tire to sit "just right"... drove 6 hours home...got and extra 5 mpg than normal... had them at 54 psi.. lol thankfully they were E rated. So just watch that Frisco Rod and Gun air compressor...it'll put 40psi in a tire in like 15 seconds...haha