Plunge into a fun, creative environment in this free exhibit that will delight kids who love to explore the deep blue sea. Discover buried treasure in a sunken pirate ship, ride a dolphin and seahorses, paddle your way to the mermaid's house, climb inside the mouth of a whale, explore in the submarine, and many more aquatic adventures. It's fathoms of fun, and it's totally free! Open daily from Feb. 11-May 7. Mon-Fri 10 a.m. to 6 p.m.; Sat 10 a.m. to 7 p.m.; Sun 11 a.m. to 6 p.m.