We could not survive the summer months without a Bimini and 12 V Fans.
The wife wants to make a canopy to hang over the boom at anchor or motoring, and when we replaced the headliner this year I added some insulation. The insulation combined with the Nicro Fans keeps the boat much cooler when we're not aboard and the 12V Oscillating fans do well when away from the dock. We even have a fan for the cockpit that plugs into a 12V receptacle
Light clothing, going nude just sounds painful, there's just someplace's I don't want a tan/burn