Anthenea

Anthenea habitats are more like a raft than a boat.  The UFO-styled pods have mainly been used on water so far but the self-contained Anthenea can actually be placed anywhere. They are best suited for water however, where their glass windows provide deepsea viewing without the need of a wetsuit.  There are three models, the cozy studio, two-story loft and the 1,900 square foot king which provides room for all the comforts of home.  They all feature posh interior details like Bang & Olufsen stereos and flatscreen TVs.  I'd still prefer something with a motor but it's a neat idea for anyone who likes to stay in one spot.