The Nautilus Explorer Costa Rica is a 40-meter/132-feet-long liveaboard that takes 27 guests in 13 suites and staterooms on diving trips in Costa Rica. There is a Premium suite with a bedroom, a lounge, and a full-size bathtub in the bathroom. The 3 Superior Suites 3 have large windows, desks, wardrobes, and ensuite bathrooms and showers. On the lower deck, there is triple and 8 double staterooms: 6 with two beds side-by-side beds, and one with twin beds, all with ensuite bathrooms and showers. The triple stateroom has a bunk bed, a double bed, and an ensuite bathroom. The dining room, the main salon, and the dive deck are on the main deck. On the Wheelhouse deck is the hot tub where guests can relax between dives and enjoy a drink while admiring the view.