Bubbler's Course is the third boss area in the game Diddy Kong Racing and its Nintendo DS port, Diddy Kong Racing DS. The course located around Sherbet Island.
It is a water-based, circular course, and it also features a tunnel section. Bubbler the Octopus is raced here. The racer would need to avoid many obstacles in this course such as mines, bubbles and logs. Blue balloons are vital to pass Bubbler, although red balloons may be used too.
In the Nintendo DS remake, the races are easier and the rotating log obstacles are missing.