A large aquatic mammal (specifically the blue whale) capable of flight using excessively large lungs. Consequential to the ability to fly, evolution has rid the Whale-blimp of several organs normally required by aquatic mammals. Along the ribcage are several pockets of uninhabited space, where passengers may safely ride without fear of being swallowed or inhaled. The creature can be used as a leisure transport, and has revived the luxury airship industry since the Hindenburg incident.