Under the Sea ~ Journey of The Little Mermaid is a slow-moving dark ride in the Magic Kingdom based on the 1989 animated feature, The Little Mermaid.
The facade entrance to the attraction is a replica of Prince Eric’s castle, as seen during the film. The castle’s architectural design is loosely based on Switzerland’s Chillon Castle, a medieval castle built on a limestone rock in Lake Geneva.
This ride has a nearly identical counterpart in Disney California Adventure called The Little Mermaid ~ Ariel’s Undersea Adventure.
Official Information: WaltDisneyWorld.com