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Zack and Woody are convinced that a girl the S.S. Tipton rescued from the ocean is actually a mermaid. They make multiple attempts to prove it, but are unsuccessful. Upon her telling Zack that she is really a competitive swimmer and extremely busy training for the Olympics, Zack decides to teach her how to relax. Meanwhile, Cody is fired as the ship's towel boy after he doesn't allow passengers to use multiple towels in an attempt to protect the environment. He also puts up a show to portray the future of the Earth if this kind of overuse continues, which ultimately gets him re-hired as towel boy.
Episodes
1The Suite Life Sets Sail 2Parrot Island 3Broke N' Yo-Yo 4The Kidney of the Sea 5Show & Tell 6International Dateline 7It's All Greek to Me 8Sea Monster Mash 9Flowers and Chocolate 10Boo You 11seaHarmony 12The Mommy and the Swami 13Maddie On Deck 14When In Rome... 15Shipnotized 16Mom and Dad on Deck 17The Wrong Stuff 18Splash & Trash 19Mulch Ado About Nothing 20Cruisin' for a Bruisin' 21Double-Crossed (II)