The tallest waterslide in the world is Kilimanjaro at the Aldeia das Aguas Park Resort in Brazil. There are 234 steps to the top and the view is so scary it's estimated at least one in twenty riders back out when they get up there! At an incline of 60°, riders hit the staggering speeds of up to 100 km/h.

As of 2026, the record for the highest water slide in the world is held by Kilimanjaro, located at Aldeia das Águas Park Resort in Barra do Piraí, Brazil. Standing at a staggering 49.9 meters (approx. 164 feet), it reaches speeds of nearly 100 km/h (62 mph). While the infamous Verrückt in Kansas City was taller, it was permanently closed and dismantled following a tragic accident in 2016, returning the crown to Kilimanjaro. In 2026, several parks in the Middle East and Asia are reportedly in "design phases" for slides exceeding 55 meters, but Kilimanjaro remains the certified record holder for operational slides. The slide is built into the side of a hill to maximize its vertical drop, and the descent is so steep that riders often feel a moment of weightlessness before they splash into the run-out lane. It remains a bucket-list item for thrill-seekers, though it requires a significant level of bravery to climb the hundreds of steps required to reach the starting platform.