Sirena Beach

Sirena Beach is a level in Super Mario Sunshine that is set on a beach at sunset on Isle Delfino. Most of this level's activities take place within Hotel Delfino, which will show up after the completion of Episode 1.

Episode 1: The Manta Storm
Mario learns from the manager of the Hotel Delfino that a phantom manta ray has buried his hotel in electric goop, and now sees it making its way back on shore again. Mario uses his FLUDD to cause the phantom manta ray to split up into smaller rays that get smaller and smaller until they're small enough to be blasted into nothingness, all the while avoiding the trail of electric goop that they leave behind. When the last smallest ray is gone, Hotel Delfino is raised back up again, the beach is instantly clean of the electric goop, and Mario gets a Shine Sprite.