Itchy Island, Home of the Nuclear Mosquitoes

This is Calvin's designation for his family's usual camping spot, which is never given an official name. He named it such due to the numerous bug bites he sustained there along with his parents. The location is invariably accessed with the family car, and it takes several hours to get there by those means.

When the family goes to Itchy Island, they appear to have exclusive access to it, as no other campers or facilities are ever seen. However, Calvin mentions that the canoe they use is rented and that the car is parked at the rental shop, indicating that the island is one of many camping locations in the area, and that the resort manging the campsites offers parking and canoe rental.