Utter Inn (in English, Otter Inn) is an art project by Mikael Genberg which offers an underwater accommodation for the public. The facility is entered through a typical Swedish red house located on the surface of the water.
With a small top section, and a lower living area ten feet below the surface, this unique hotel destination attracted thousands of residents since opening in 2000.
As the brainchild of Mikael Genburg, the idea came to him out of the blue. "I don't think there is an experience quite like sleeping underwater and many people have come to find out if they like it."
The inn is open from April/May to early September, and a stay here will run you about $400-500.