Assateague Island and Ocean City have been losing land from sea level rise, extreme weather events, and subsidence. Since 1960 the sea level has risen 5 inches and storms have been becoming more intense in recent years. On Google timelapse you can see how the coastline has receded on Assateague Island, while long shore drift has extended the barrier island. Ocean City is adding more sand to its beaches because of expensive seaside properties, but Assateague Island is moving some of its campsites and facilities farther back because of the land loss.
https://earthengine.google.com/timelapse/ and search Assateague Island