Several years back there was an amazing article in National Geographic about a couple of guys sailing thru the Northwest Passage in a Hobie 18 (if I remember correctly). They had to climb the mast to scout for soft water and be constantly on the lookout for growlers (small icebergs). This story puts a lot of warm weather cat sailing in perspective and made me realize that there is always someone crazier than you would imagine-out there on the water.