Ventilation became a high priority after sailing in rougher weather to the Azores. The cabin was stale and claustrophobic! We now have three air-only ventilators (watertight even in a capsize). Two vent cowls were added for the main cabin, and one low profile vent with electric fan was installed for the head.
We also added a new hatch under our nesting dinghy. Because of its protected position, this Lewmar Ocean 30 stays open in most conditions (when the dinghy is stowed). In combination, the new air-only ventilators, small protected hatch, forward hatch, and companionway complement 4 original port holes and give Dawn Treader many ventilation options.