Sherbet Island

Sherbet Island is the third world of Timber's Island in Diddy Kong Racing and its remake, Diddy Kong Racing DS. The world is mostly water-themed with pirate ships mostly sunken, pirate caves, and whales and the entrance to the world is located on an island in the bay by the lighthouse. The player needs 10 Golden Balloons to enter this world. Bubbler The Octopus is the boss of this world.

Description
''The idea of a tropical paradise is realized on Sherbet Island, where there's barely a soul to be seen and the sunny silence is totally relaxing. Once the home of smugglers and pirates, it's long since been abandoned to the parrots, palm trees and rolling blue waves. Some surprisingly varied racetracks have been created here, ranging from the thundering falls of Whale Bay and the sandbank-studded shallows of Pirate Lagoon, to the sandy coastal tunnels of Crescent Island and the deserted smugglers' lair now known as Treasure Caves.''

–Description from the Diddy Kong Racing Instruction Booklet

Whale Bay
Whale Bay is the first track of Sherbet Island and can only be raced using a hovercraft. The track takes place in a simple bay featuring several whales, one of which forms a shortcut for racers.

Crescent Island
Crescent Island is the second track and is set among sandy tunnels and an abandoned pirate ship. This track also features the key to this worlds battle stage.

Pirate Lagoon
Pirate Lagoon is a very twisty track featuring many sharp turns among sandbanks, coves and a castle. Like Whale Bay, this track can only be completed on a hovercraft.

Treasure Caves
Treasure Caves is the last track of Sherbet Island and takes place in an abandoned smugglers lair featuring another abandoned shipwreck in a gloomy cavern.

Darkwater Beach
Darkwater Beach is the battle stage for Sherbet Island, and has the same format as Icicle Pyramid where players endeavor to be the last racer left standing; except this time set in an enclosed bay at night time with hovercraft as the chosen vehicle.

Bubbler's Course
Bubbler's course is the boss track of Sherbet Island and is set on a beach studded with enclosed caves.

Trivia

 * Two of this worlds tracks, Pirate Lagoon and Treasure Caves, share track music.