Tom Sawyer Island is an artificial island surrounded by the Rivers of America at Disneyland, Magic Kingdom and Tokyo Disneyland. It contains structures and caves with references to Mark Twain characters from the novel The Adventures of Tom Sawyer, and provides interactive, climbing, and scenic opportunities. At Disneyland in 2007, the attraction was rethemed and expanded as Pirate's Lair on Tom Sawyer Island, adding references to Disney's Pirates of the Caribbean film series.

The Rivers of America is the artificial river found in the Frontierland areas of Disneyland-style Disney theme parks around the world. The first river was built in Disneyland when the park opened in 1955. It surrounds Tom Sawyer Island, which can be reached by rafts traveling from the Frontierland mainland. Additionally, there are other water-based vehicles which are found on the river. The sights along the Rivers include a Native American tribe, a burning cabin, and various audio-animatronic wildlife.