Dragoneel's Undersea Grotto

Dragoneel's Undersea Grotto, or Sparkling Waters-5, is the fifth course of Sparkling Waters in New Super Mario Bros. U. It is unlocked via completion of Above the Cheep Cheep Seas or Urchin Shoals, and its own completion unlocks Larry's Torpedo Castle.

Layout
The player starts in a small area with a Warp Pipe sticking out of the water, which will take them underwater.

The ground underwater is made entirely of quicksand. After the player exits the Warp Pipe, there is a ? Block with a power-up, followed by a school of Eep Cheeps. At the second ? Block, a Dragoneel will appear and circle around it, following after the player when they continue onward. The rest of the stage continues with Eep Cheeps, ? Blocks, and various pipes that expel air to help the player move faster. Near the end of the level, there is a large school of Eep Cheeps that may hinder the player's progression. Another Warp Pipe then takes the player directly to the Goal Pole.

Star Coins

 * Star Coin 1: In plain sight, with coins circling it.
 * Star Coin 2: Between two groups of Brick Blocks.
 * Star Coin 3: Almost submerged in quicksand is a Warp Pipe that leads to the area with the final Star Coin. Two purple Dragoneels appear in this small area.

Enemies

 * Dragoneel
 * Purple Dragoneels
 * Eep Cheeps

Monopoly Gamer
Dragoneel's Undersea Grotto is the sixth Property on the game board in Monopoly Gamer. It is one of two properties in the Maroon Color Set (along with Sparkling Waters).

Names in other languages
Drachenaals Grotte