If a length or two of backstroke doesn’t do it for you, you might want to try the Ultimate Abyss

Harmony of the Seas showing the slide.
The world’s longest slide.

The Royal Caribbean’s Harmony of the Seas’ 10-storey duo slide – 10 STOREYS! – aka the Ultimate Abyss drops thrill seekers 30.5 m from the 16th to the 6th deck.

Adrenalin junkies traverse through twisting tubes in the world’s longest cruise line water slide.

If you have the nerve, the Ultimate Abyss debuts in May. Harmony of the Seas is  a 5, 497 passenger ship features 2, 747 staterooms.

For more info on the Ultimate Abyss and for bookings click here: