Corrections & Clarifications: An earlier version of this story had the wrong date for Muppet*Vision 3D and PizzeRizzo’s closing. They are closing on June 8.

It's time to say goodbye to an iconic piece of Walt Disney World.

On Tuesday, Disney Parks announced that Magic Kingdom's Tom Sawyer Island, Liberty Square Riverboat and Rivers of America will close on July 7 to make way for a new "Cars"-inspired area unveiled at last August's D23: The Ultimate Disney Fan Event.

For decades, Tom Sawyer Island has offered guests a tranquil, tree-canopied respite from crowds and a cornucopia of caves and other places for kids to explore and stretch their legs. Many longtime fans have expressed sadness at their imminent loss, but newly shared details suggest similar experiences ahead.

Yes. The area is being reimagined as "Piston Peak National Park," part of Magic Kingdom's largest expansion to date.