Winyah Bay was formed from a submergent or drowned coastline, i.e. the original rivers had a lower baseline, but either the ocean rose or the land sank, changing the landform and making a good location for a harbor.
Winyah Bay was formed from a submergent or drowned coastline. The original rivers had a lower baseline, but either the ocean rose or the land sank, flooding the river valleys and making a good location for a harbor.