Tropical Refresher

Tropical Refresher, or Sparkling Waters-2, is the second course of Sparkling Waters in New Super Mario Bros. U. It is unlocked via completion of Waterspout Beach, and its own completion unlocks a green Toad House and Giant Skewer Tower.

Layout
The course contains various pipes that either shoot out coins or shoot currents that pushes the player back. The most common enemies are Cheep Cheeps, Bloopers and Mega Urchins.

Star Coins

 * Star Coin 1: Sliding up a red Warp Pipe.
 * Star Coin 2: Between two Mega Urchins is a hidden wall with a ? Switch in it. The player should hit it to make the second Star Coin fall.
 * Star Coin 3: Near the end of the course is a green Warp Pipe beneath a Mega Urchin. Fire Mario is required to defeat the Mega Urchin within that guards the final Star Coin.

Enemies

 * Cheep Cheeps
 * Bloopers
 * Urchins
 * Mega Urchins