Winx Club Forever
The Labyrinth of the Abysses is dark, with only the voices of the Shimmering Shells being heard. It is purple colored, and just like the name says, it is a labyrinth full of ways, paths, and empty spaces. The Labyrinth of the Abysses is located in Andros' ocean.
The Winx need to find the Gem of Self-Confidence, so they traveled Andros' ocean to find the Shimmering Shells in the Labyrinth of Abysses. When they arrive, it is seen that Tritannus had spread pollution, and the Shimmering Shells are releasing pollution and creating illusions. However, the Winx manage to purify them. After that, the Shimmering Shells give the Winx a clue to find the gem.