Ben Lane
CHALLENGE,  December 2025,  Event reviews,  EXTRA,  FEATURES

What’s better – swimming 30km in a river or 30km in the sea?

Ben Lane did some thinking and devised a plan to swim and compare 30km by river and 30km by sea. As always in life, not everything went to plan or, indeed, swimmingly!

Einstein’s Gedankenexperimente – thought experiments – were the key to many of his theories.

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Outdoor Swimmer is the magazine for outdoor swimmers by outdoor swimmers. We write about fabulous wild swimming locations, amazing swim challenges, swim training advice and swimming gear reviews.