Wario Dunes is one of the courts available in Mario Tennis Open. It's the default court for the Flower Cup tournament. It is a sand tennis court that is set in the desert, with cactuses seen, and a pyramid seen in the background, while another one is right in front of the court. It will have ruined sand bricks that will surround the court and will be based on the Super Mario desert levels. Unlit torches can be seen around the court. Red, Green, Blue, and Pink Shy Guys will surround the court.