A locomotion interface for swimming and floating in a virtual ocean is part of the interactive installation of the Swimming Across the Pacific artwork. In the 'Swimming Across the Pacific' artwork, the authors create a space for collaborative artwork in an airplane by having a swimmer swim while flying across the Pacific Ocean. The swimmer's swimming represents a transformation of the airplane into an art gallery where the medium is the airplane, much as Misheff transformed the Queen Elizabeth II while he swam during her journey. By using elements such as the AV system, food, and clothing in the airplane for expression, fellow artists, scientists, engineers, musicians, media, and other passengers participate together to create artwork. This article is available with a short video documentary on CD-ROM.