Oceans Seven

The Oceans Seven is a marathon swimming challenge consisting of seven open water channel swims. It was devised in 2008 as the swimming equivalent of the Seven Summits mountaineering challenge. It comprises the North Channel, the Cook Strait, the Molokaʻi Channel, the English Channel, the Catalina Channel, the Tsugaru Strait and the Strait of Gibraltar.

List of Oceans Seven swims

 * The North Channel: between Ireland and Scotland, 34.5 km
 * The Cook Strait: between New Zealand’s North and South Islands, 22.5 km
 * The Molokaʻi Channel (also known as the Kaiwi Channel): between Moloka’i and O’ahu, 42 km
 * The English Channel: between England and France, 33 km
 * The Catalina Channel: between Santa Catalina Island and Los Angeles, 32.3 km
 * The Tsugaru Strait: between the Japanese islands of Honshu and Hokkaido, 19.5 km
 * The Strait of Gibraltar: between Spain and Morocco, 14.4 km

List of successful completions
The LongSwims Database maintains a list of swimmers who have completed the challenge: