Normally Link loses stamina while climbing. He must then rest to recover stamina to keep climbing. Use the following glitch to keep climbing without having to rest to refill your stamina. Start climbing up any mountain, even in the rain. Press B to drop, then immediately press B again while holding the Left Analog-stick Forward. Link should run on his feet for a short burst, recovering stamina before climbing again. Keep repeating this process to recover stamina and climb endlessly. Simply press B and Forward after falling, but make sure you do this before completely running out of stamina or else you will fall until your stamina fully recovers.