I've been swimming, true swimming. We where walking down the river and all of a sudden the bottom was no longer there :) at that point the horses had to swim or they would sink :P.
Unfortunately that was the point when my frist horse chose 'sink' . I was pretty sure we would have to find a way to drag his dead body off teh bottom of the lake, to be honest. He wasn't overly bright though.... I'd love to get a chance to take my new mare swimming... the most we've been able to do is up to her belly because we were fully tacked up.