This 5-acre facility houses the largest aquarium in the state and features one of Hawaii’s largest predators: the tiger shark. As you walk past the 3 dozen or so tanks and countless exhibits, you’ll slowly descend from the tide pools to the pelagic zone—without ever getting wet. Start at the outdoor surge pool, where you’ll see shallow-water spiny urchins and cauliflower coral; and then move on to the turtle pool and eagle-ray pools before heading indoors for the star of the show: a 100-foot-long, 600,000-gallon main tank featuring tiger, gray, and white-tip sharks, as well as feisty ulua, colorful surgeonfish, and numerous others. The walkway tunnels right through the tank, so you’re surrounded on three sides by marine creatures. Check out the hammerhead exhibit, where juvenile scalloped hammerhead sharks are on display, and the Shark Dive Maui Program, where scuba divers plunge into the tank with sharks, stingrays, and tropical fish. You, too, can sign up to dive with sharks, and fish-loving kids can book a sleepover in the aquarium, staying up into the wee hours to watch glowing jellyfish and other nocturnal animals.