Jen Schumacher’s Ocean’s Seven Challenge

A young California marathon swimmer is taking on seven of the world’s toughest open water swims to raise awareness and funds for 3MF and its International Whales Network.

Her name is Jen Schumacher and her challenge is The Ocean’s Seven — seven iconic channel crossings around the world that present the most difficult and extreme conditions imaginable for open water swimmers.

Jen is competing against a small group of elite marathon swimmers who are racing to become the first human being to conquer The Ocean's Seven.

She's asking each of us to contribute to the cause of protecting the oceans and all the marine life they sustain.

Read Jen's 3MF Statement of Purpose [PDF]

Download Jen's Ocean's Seven Challenge Event Card [PDF]

The Ocean’s Seven

Ocean's Seven Open Water Swimming Challenge Map Click for a PDF map
  1. Catalina Channel – 21 miles between Southern California and Santa Catalina Island
  2. Tsugaru Strait – 12 miles between the islands of Honshu and Hokkaido, Japan
  3. Moloka‘i Channel (or Kaiwi Channel) – 26 miles between O‘ahu and Moloka‘i in Hawai‘i
  4. Cook Strait – 14 miles between the North and South Islands of New Zealand
  5. English Channel – 21 miles between England and France
  6. Strait of Gibraltar – 9 miles between Spain in Europe and Morocco in Africa
  7. Irish Channel (or North Channel) – 21 miles between Northern Ireland and Scotland: Considered the most difficult channel in the world


About Jen

Jen Schumacher, marathon open water swimmer Jen Schumacher is a 25-year-old marathon swimmer and graduate student at California State University, Fullerton. She has completed several major marathon swims, including the 21-mile Catalina Channel in both directions (one of the Ocean’s Seven), the 28.5-mile Manhattan Island Marathon Swim, and the rough 17-mile crossing between Kauai and Ni‘ihau in Hawai‘i in a record time of 9:56.

Join Jen on her journey at

Jen Schumacher, Marathon Open Water SwimmerJen Schumacher, Marathon Open Water SwimmerJen Schumacher, Marathon Open Water Swimmer


Sanctioned by

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