The holidays are over and it's time to start planning for summer. Here's a list of crazy water slides you can include in your checklist as reported by Yahoo Travel.

Verruckt, Schlitterbahn Waterpark Kansas, United States

What better way to start this list than with the world's tallest water slide? Verruckt means "insane" in German, it is 17 stories above the ground at 168 feet, 7 inches, that is taller than Niagara Falls and the Statue of Liberty from toes to torch as reported by USA Today.

In the same article, the owners were reported to be the first ones to try the slide.

'John and I were the first people down; I'm still recovering mentally,' said Schlitterbahn Waterparks & Resorts co-owner Jeff Henry, who created Verrückt with Schlitterbahn senior designer John Schooley. 'It's like jumping off the Empire State Building. It's the scariest thing I've done.'

Aquaconda, Aquaventure Waterpark, Dubai

This one is a slide within a slide -- a first in the world. The water slide comprises an enclosed tube slide that weaves in and out of the framework of a flume-style ride. Since it's made of translucent plastic, passengers in one section can watch others whizzing down.

Leap of Faith, Atlantis Paradise Island, Bahamas

If you've had enough of tall slides that seem like roller coaster, let's go full-on scary by a 20-metre drop into a lagoon of sharks. You actually drop inside a flume so they can't eat you but it is see-through so you can definitely have your eye-to-eye moment with the sharks.

Summit Plummet, Blizzard Beach, Florida

Most of the slides mentioned earlier involve a raft, and if you're more of a free-fall person, this one is for you. Think 12 storeys, 120 feet, and the fastest free-fall body slide in the world.

Citta Del Mare Holiday Village, Italy

If you're more of a beach person but still like slides, there is also one for you. This slide in Italy will give you the most scenic water slide you can imagine -- a view of the Sicilian coast where at the end of the slide it delivers you straight into the Mediterranean.