It's an unpredictable and often treacherous 41 mile (65.9km) journey from Molokai to Oahu across the Kaiwi Channel.  The event is considered by many competitive paddlers to be their sport's ultimate challenge.

The Moloka‘i Hoe has become one of the longest running annual team sporting events in Hawai‘i, second only to football. The Moloka‘i Hoe perpetuates one of Hawaii’s and Polynesia’s most important and historic cultural traditions, while honoring outrigger canoe paddlers around the world. The Moloka‘i Hoe tests the limits of physical and mental strength and endurance, courage determination and teamwork, and paddlers must also battle nature’s most extreme elements.

Each year over 1000+ paddlers from around the world compete in the Moloka‘i Hoe, the men’s world championship in outrigger canoe racing. 

http://www.molokaihoe.com/index.html