Oceans 7 Challenge The Oceans Seven is a marathon swimming challenge consisting of seven open water channel/strait swims:North Channel: between Ireland and Scotland, 21 miles (34 km)Cook Strait: between New Zealand’s North and South Islands, 16 miles (26km)Moloka’i Channel: between Moloka’i and O’ahu, 27 miles (44km)English Channel: between England and France, 21 miles (34km)Catalina Channel: between Santa Catalina Island and Los Angeles, 21 miles (34km)Tsugaru Strait: between the Japanese islands of Honshu and Hokkaido, 12 miles (20km)Strait of Gibraltar: between Spain and Morocco, 10 miles (16km). Our Irish mixed-relay team has successfully completed four of the seven channels to date: the English, North, Catalina Channels & the Tsugaru Strait. Well done Team! Oceans 7 Challenge Progress To Date (4/7) 57% Read their blog-posts, see their pics and videos: English Channel North Channel Catalina Channel Tsugaru Strait