Move over Wild Water Kingdom: last year's Calypso Park opening made the Ottawa-area attraction Canada's largest water park. It sports a 52,000-square-foot wave pool — one of the largest in North America — along with 35 waterslides. And Calypso is getting even bigger this year with the addition of the 28-metre tall "Summit Tower," the tallest free-standing waterslide tower in North America. Ten new slides jut out from the tower, including the roller-coaster-like "Aqualoops" and high-speed "Accelerators."

* Video: Travellers rank the "world's best" hotels, cruises and more