"Tom and Suri got into a splash fight," onlooker Morgan Ayres, 17, visiting from Terre Haute, tells PEOPLE. "They were laughing and giggling and splashing. He looked like he was having an amazing time."
Tom also took Suri to Disney World's Magic Kingdom on Monday and Hollywood Studios on Wednesday. During a Thursday visit to Animal Kingdom, Tom bought Suri a banana smoothie.
Courtesy Carter Marteeny
And Keeley Reymond, 20, of Jacksonville, Fla., who was also at the theme park, added: "When they got onto the [Wildlife Express Train ride], she snuggled up under his arm. She looked like a daddy's girl."
Suri's summer will end in September when she begins private school back in New York City's Chelsea neighborhood, near her home base with mom Katie Holmes. She'll be attending Avenues, which teaches all students a foreign language – an invaluable skill for the young jet setter.