These are the Subparks featured in the game.
Throttleville, is the first park you enter. Its theme is Motors and Car Stunts. Saddleville, is the second park. Its theme is Western. Battleville, is the final park. It is dedicated to War.
The first park is Usagiville. The theme it showcases is Sparkle Island. Oceanville, is the second park. It is solely about the Ocean, hence the name. Finally, there is Astroville. This is about the future, and space.