Answer
Most shops patch or replace tubes same day—thorny boardwalk approaches and under-inflated tires cause repeat flats. Carry a spare tube on long rides if you brought your own bike. Rental flats go back to the rental desk first.
Sources: Visit Ocean City · 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.
