The 2023 live-action reimagining of The Little Mermaid was primarily filmed in Sardinia, Italy, and at Pinewood Studios in England. The stunning, rugged coastline of Northern Sardinia served as the backdrop for the "land" scenes, including the beach where Ariel saves Prince Eric and the coastal areas around the castle. Specifically, the production used locations in Santa Teresa di Gallura, Castelsardo, and Golfo Aranci. These spots were chosen for their crystal-clear turquoise waters and dramatic rock formations that gave the film a timeless, fairy-tale Mediterranean feel. For the "underwater" sequences, which comprise a huge portion of the film, the production utilized "dry-for-wet" technology at Pinewood Studios' massive water tanks and soundstages. Actors were suspended on complex rigs and wires to simulate swimming, with the water, sea life, and Ariel's tail added later via CGI. This combination of real-world Italian beauty for the terrestrial scenes and high-tech London studio work for the aquatic world allowed the film to balance a grounded, realistic look with the fantastical requirements of an underwater musical.