Answer
Beach glass—sometimes called sea glass—is discarded glass tumbled smooth by waves, sand, and time. Pieces turn up in shell hash along the tide line, especially after storms rearrange sand. Colors range from common clear and green to rarer cobalt and red fragments worn small.
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.
