Doubloon Lagoon - Disney's Port Orleans Resort-French Quarter
It's All About the Mouse Travel's Facebook page tells us:
Festive decorations, an all-alligator band and a blue sea serpent waterslide immerse you in the magic of New Orleans. At Doubloon Lagoon, it’s Mardi Gras every day! Come slide down Scales, the 51-foot-long snaking sea serpent slide, whose tongue deposits you into the lagoon with a mighty splash. Alligator jazz aficionados, a kiddie pool, a whirlpool spa and the Mardi Grogs pool bar make it even more of a party—as King Neptune watches over all of the merriment from on high.