Sparkling Waters

Sparkling Waters is the tropical world in New Super Mario Bros. U. Players can reach it by moving south from the end of Layer Cake Desert, or via the secret exit in Soda Jungle. Sparkling Waters lies east of Acorn Plains, south-east from Layer Cake Desert, south from Frosted Glacier, and west from Soda Jungle. Sparkling Waters is in an ocean filled with multiple islands and having bubbling water geysers, which is quite similar to World 4 from New Super Mario Bros Wii as that tropical world also had multiple islands. There are 7 levels in this world, consisting of 5 normal levels, the Fortress level and the Castle level. The boss of this world is Larry Koopa.

Levels

 * Sparkling Waters 1: Waterspout Beach
 * Sparkling Waters 2: Tropical Refresher
 * Sparkling Waters 3: Above the Cheep Cheep Sea
 * Sparkling Waters Fortress: Giant Skewer Tower
 * Sparkling Waters 4: Urchin Shoals
 * Sparkling Waters 5: Dragoneel's Undersea Grotto
 * Sparkling Waters Castle: Larrys Luminant Castle

Trivia

 * Every world (counting this one) in New Super Mario Bros. U that is confirmed and is showed, has a pipe at the beginning of the world.