Marina Stadium

Marina Stadium is a court in Mario Tennis Aces, located near the entrance to the Kingdom of Bask. It features the traditional Hard, Clay, Grass, and Night Courts, and features Toads, Goombas, Koopa Troopas, Shy Guys, Spikes, and Penguins as spectators.

In-game description

 * Hard, Clay, and Grass Courts: "Every tennis lover dreams of winning here! A truly magnificent stadium-court experience where you can challenge yourself to an ultimate battle of skill."
 * Night Court: "Every tennis lover dreams of winning here! A dazzling stadium court experience where you can enjoy an exhilarating match at night."

Adventure Mode
In Adventure Mode, the court is featured in the penultimate mission, with Peach and Daisy in a doubles match against a possessed Wario and Waluigi, and with Mario in a singles match against a possessed Luigi. Afterwards, Bowser will fuse himself with Lucien, leading to the final mission in the Temple of Bask Shrine.

Trivia

 * The Night court shows each character's name fully capitalized on their respective side. Kamek's name is erroneously shown in regular capitalization.