A rock climber at the Grand Canyon fell about 90 feet on Sunday . . . landed at the bottom of a "slot canyon," which is like a cave . . . and somehow didn't even get hurt.



He posted GoPro footage, and it looks like he bounced off the walls a few times, which probably slowed him down.  Then he starts moaning after he lands.  But a few seconds later, he yells up to his friend that he's okay.



He went to the emergency room after he hiked back to his car, and they did a full-body CAT-scan.  But he was fine, and they couldn't even find a scratch on him.