Cassiopeia is a 40-meter, 8-meter-wide liveaboard built in 2006 and renovated in 2018, powered by twin 1,100 HP MAN engines, diving the Revillagigedo Archipelago around Socorro, roughly 450 km off Los Cabos, Mexico. It has 13 en-suite, air-conditioned cabins: a honeymoon cabin on the main deck with a circular bed, four double-bed cabins (two on the main deck, two lower deck) and eight twin-bed cabins (two main deck, six lower deck). Facilities include a 100 m2 sun deck, a covered relaxation deck, an air-conditioned salon with media equipment, a large dive deck and platform with showers, a shisha room and a front sun area near the bridge.