Karl Bushby and his companion on this stage of his journey, U.S. citizen Dmitry Keiffer, were detained without visas on April 1 after walking across the ice-bound Bering Straits from Alaska.
The court, in the Chukotka region of Siberia, said Bushby and Keiffer had not entered Russia with ill-intent, as a lower court had ruled.
(AFP)