He crossed 26 miles in a kayak made from mushrooms - and lived to tell the tale

[erronis]

https://www.theguardian.com/us-news/2025/sep/07/mushroom-kayak-plastic-alternative

Sam Shoemaker in a kayak made entirely from mushrooms in the waters off Catalina Island. Photograph: Jordan Freeman/Courtesy of Sam Shoemaker

Sam Shoemaker’s record-setting voyage shows the promise – and limits – of fungi as a plastic alternative

n a clear, still morning in early August, Sam Shoemaker launched his kayak into the waters off Catalina Island and began paddling. His goal: to traverse the open ocean to San Pedro, just south of Los Angeles, some 26.4 miles away.

But upon a closer look, Shoemaker’s kayak was no ordinary kayak. Brown-ish yellow and bumpy in texture, it had been made – or rather, grown – entirely from mushrooms. His journey, if successful, would mark the world’s longest open-water journey in a kayak built from this unique material.

With his phone, GoPro camera, walkie talkie, and a compass affixed to his life vest, Shoemaker left shortly before 6am in order to avoid the worst of the swells in the forecast. But three hours in and powering through his ninth mile, the coastline still out of sight, Shoemaker began feeling seasick.

Suddenly, he heard the sound of a large animal breaching the waters. To his left, a fin whale flashed its glistening tail, then trailed slowly behind him. As the 50-ft creature followed him for three more miles, Shoemaker found the strength to finish out the maiden voyage.

“It was just like a psychedelic experience,” he says of the crossing, which took him 12 hours.

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[Ritabert]

1. He's braver than I am.