Ocean Explorers Grand Slam

The Ocean Explorers Grand Slam is an adventurer goal to complete open-water crossings on all five oceans using human-powered vessels. == History == In 2019, Icelandic explorer Fiann Paul led the first human-powered transit (by rowing) across the Drake Passage (The Impossible Row) and, in doing so, he completed the row on his fifth ocean, and became the first person to achieve the Ocean Explorers Grand Slam.

Source: Wikipedia — Ocean Explorers Grand Slam (CC BY-SA 4.0)