Answer
Lowering tire pressure to roughly 15 psi improves traction on soft sand—organizers require it for beach crawls. Bring a portable air compressor to re-inflate in the Inlet lot before returning to pavement. Running highway pressure on beach sand risks getting stuck and damages dunes.
Sources: Ocean City Jeep Week · Town of Ocean City
Editorial visitor guidance for Ocean City, Maryland. Confirm current Town of Ocean City, Maryland DNR, NPS Assateague, and NWS rules when regulations or safety apply.
