Atlantica

The main city of Atlantica is the only "constructed" area, made of what appears to be coral and other underwater vegetation. King Triton's chamber can be found here. Outside the city is a gorge which serves as a hub to other areas. Here can be found Ariel's grotto, a secret place where Princess Ariel stores her human artifacts. There is also a trident-shaped indent on the wall; when used in conjunction with the Crystal Trident or Triton's own trident, it reveals the keyhole in a swirl of bubbles. Also, a path from here leads to a rotting sunken ship that has become the home to many sea creatures. A more sinister area of the sea can be accessed from here: the Den of Tides and the sea witch Ursula's lair. Here you get a fish-like appearance.