On May 21, 1938, it was reported that two men named Ivy Anderson and Dean Green had to hike 14 miles across snow-covered hills stark naked.
This wasn’t some sort of prank or endurance adventure. It seems that the two men parked their car and decide to swim in Slats Creek. After disrobing, they tied their clothes into a bundle and threw them across the stream. The clothes fell short of the shoreline and were carried away by the stream’s current.
So, they hiked 4 miles back to the car only to realize that the car keys were in their pants pocket, which was clearly swept downstream. They decided to hike 10 miles to Strawberry, California to seek help and, one can presume, to get some clothes.