2014 Agena Marin Semisubmarine 12PAX

The Agena Marin Semisubmarine 12PAX is a 46-foot fiberglass explorer built for underwater observation. Its distinctive design positions the hull 1.5 meters below the surface, allowing passengers to view the underwater environment through submerged viewports while remaining safely aboard. The boat accommodates up to 12 passengers and operates in all weather conditions and lighting.

Powered by a single 40-horsepower Yanmar diesel engine, the yacht cruises at modest speeds suited to observation work. The deck features panoramic seating that provides above-water views while the submerged viewports reveal marine life and the seafloor below. This dual-perspective design makes the boat effective for marine education, wildlife viewing, and exploration regardless of weather or time of day.