The final wing of Disney's Art of Animation Resort is complete and Guests are now invited to slumber in Ariel's colorful retreat at "The Little Mermaid" wing. This final phase of the staggered opening that included "Finding Nemo", "Cars" and "The Lion King" which opened previously and have been hosting guests while construction continued. The Little Mermaid saw it's first Guests arrive on Saturday Sept. 15 at Walt Disney World Resort.