Answer
Regardless of branding debates, apply and reapply sunscreen, and never rinse sticky residue into fragile dune plants. Mineral formulas are a common personal choice for some visitors. Pack out all bottles and wipe trash.
Sources: Town of Ocean City · Visit Ocean City · Maryland DNR / coastal guidance
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.
