Atlantica is the kingdom is located beneath the Atlantic Ocean featured in The Little Mermaid franchise.

Where is Ariel's from?

Ariel is the seventh-born daughter of King Triton and Queen Athena of an underwater kingdom of merfolk called Atlantica. She is often rebellious, and in the first film, she longs to be a part of the human world.

Where did Ariel and Eric live?

Prince Eric's Castle is where Eric lives with his wife, Ariel and their daughter, Melody. A wall was put around it to protect Melody from Morgana but was destroyed after Morgana's defeat. The castle may have been inspired by Chillon Castle, Switzerland and Tintagel Castle, Wales.