Killer whale sculptures installed at zoo's Alaskan Adventure splash park by Megan Farmer, Omaha World-Herald. Alaskan Adventure, which is expected to open in June, will act as a splash-ground play area and a water feature for the zoo. The exhibit will be free with zoo admission and include more than 75 bronze sculptures, many of which will have built-in water features that mimic actions that the animals make in the wild.