Answer
Pack out trash, stay off fragile dunes except on marked paths, and keep food secured from wildlife. Feeding horses or foxes is harmful and prohibited. Soft sand and heat make overpacking a liability—bring what you need and carry it all back out.
Sources: National Park Service — Assateague · Leave No Trace
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.
