Peninsula swim
From Openwaterpedia
noun - A peninsula swim is an open water swim around a peninsula or a piece of land almost surrounded by water or projecting out into a body of water. It is similar to a round-island swim or a partial swim around an island in a lake, bay, sea or ocean. It differs from a circumnavigation swim or around-the-island swim which requires a swimmer to completely circumnavigate the entire island.
Usage[edit]
Swimming from one beach to the other around the peninsula is a peninsula swim.