Answer
Yellow flags warn of surf and current risk in the swim zone—upland castle contests on dry and wet sand away from groins are fine while weak swimmers stay out of the ocean. Re-check flags before any wading.
Sources: Ocean City Beach Patrol · 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.
