Try the portable AC unit
Yeah, are'nt these humid summer nights a bear?If you anchoring, the fans will eventually take your battery down, but if you have two and your outboard it not electric start and has an alternator, your in luck. Twelve volt fans are in various configurations and the most popular are the bulkhead mounted units that oscillate to move the air around better. That and the "windscoop" forward hatch wind catcher are your only means on the water. If however; your at the dock and have AC power. Your cheapest way to get cold is using a 5,000 BTU window AC unit. That can be set up in the cockpit on a stand letting the condensation flow back into the cockpit scuppers and fabricating hatch boards that will fit to seal in the AC unit. The biggest complaint is getting in and out, but think of the absolute comfort you will enjoy below.Bob'88 30 Catalina