Aquascarium 2026 is a spooky-fun Halloween splash at the Tennessee Aquarium in Chattanooga, where the animals get a festive twist. Come in costume, wander the aquarium's watery exhibits and enjoy a daytime adventure with the family. It's a playful way to celebrate the season, and it's a great pick for kids, costume lovers and anyone who wants a little Halloween magic with their sea creatures. Wear your favorite costume, bring your crew and make a splash!