Strictly speaking, the physical castle belonging to Prince Eric from The Little Mermaid is located in Magic Kingdom Park at Walt Disney World Resort in Florida. It serves as the grand entrance and "weenie" (visual magnet) for the attraction "Under the Sea ~ Journey of The Little Mermaid," situated within the New Fantasyland section. While the castle is impressive, it is a "mini-castle" compared to Cinderella's. In 2026, this area remains a fan favorite, featuring rugged seaside cliffs and a nearby meet-and-greet at Ariel’s Grotto. It is important not to confuse this with the Little Mermaid attraction at Disney California Adventure, which features a similar ride but is housed in a "Palace of Fine Arts" inspired building rather than a recreation of Eric’s castle. In 2026, the Magic Kingdom version remains the definitive location for guests wanting to see the iconic red-roofed Mediterranean-style castle from the 1989 animated film.