Windmill Hill is an area in Super Mario Sunshine 2: Islands of Darkness. The first area of Isle Claw, Windmill Hill is located from the Pianta Statue in the center of Claw Plaza. An easy level, it teaches the player the basics and is a callback to the first game and Bianco Hills.
- Into the Windmill: This level tasks the player with climbing the hills and going to the top of the Windmill and defeating Potmeister.
- Watery Chasm Secrets: The player must go beneath the bridge to the Windmill and go into the crack in the Windmill door and complete a secret level without FLUDD or SQUIRT.
- Red Coin Hills: This level tasks the player with locating 8 Red Coins in the hills.