Abstract: A portable shelter for use by ice fisherman is formed from two curved hollow shell halves joined together by cooperating VELCRO flange portions. One shell half is provided with a semicircular integrally formed floor. One shell half may be provided with a hinged or slidable door, while the other shell half is provided with a hooded vent. The portable ice fishing shelter may be transported to the site of use by nesting one shell half within the other shell half and towing the shelter over the surface of a frozen body of water in this condition. Upon arrival at the site of use, the shell halves are assembled to form an igloo-like shelter.