Answer
Thunder, lightning, dense fog, and small-craft advisories postpone trips—captains call off unsafe swell even when beaches look open. Flexible scheduling helps. NWS marine forecasts beat pier-level guesses.
Sources: National Weather Service · Visit Ocean City · U.S. Coast Guard
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.
