noun, adjective - Triple crossing is a solo open water swim or a relay that continues three consecutive times across a channel, lake, river or other body of water. Traditionally, there can be up to a ten-minute break at the shoreline between each crossing.
The swimmer set the record for a triple-crossing in the Catalina Channel.
The relay negative split its triple-crossing of the English Channel, swimming one hour faster in the second crossing than the first.
She was planning on a triple-crossing of the Strait of Gibraltar.