If you've even seen 1/16th of the episodes from The Secret Life Of A Mermaid, you know that they've made episodes all over the place, they've made episodes at Amy's House, actually the place used most to make the video's is Amy's property. They have also made episodes at: A Mall near Amy's house, Brenna's House, Kelsey's House, Amy's pool (this is where all of the underwater scenes are done) The dock infront of Amy's house, a nearby beach(it is supposed to seem like they went to many different beaches, including key largo, but they mainly just filmed at the same beach, just ifferent parts of it, right near Amy's house), around the neighborhood, and a lot of ther places.