If you fancy a dip in this pool, you'll need a head for heights - it's 55 storeys up.

But swimming to the edge won't be quite as risky as it looks. While the water in the infinity pool seems to end in a sheer drop, it actually spills into a catchment area where it is pumped back into the main pool. At three times the length of an Olympic pool and 650ft up, it is the largest outdoor pool in the world at that height.

It features in the impressive, boat-shaped 'SkyPark' perched atop the three towers that make up the world's most expensive hotel, the £4billion Marina Bay Sands development in Singapore.


Don't look down: A guest swims in the infinity pool of the Skypark that tops the Marina Bay Sands hotel towers - 55 storeys over the city of Singapore


To infinity... and beyond! The pool stretches 150 metres, three times the length of an Olympic swimming pool


The view over the side: An artist's impression shows the Skypark that tops the Marina Bay Sands hotel towers, including the infinity pool


The resort from across the bay. The three towers were based on a deck of cards, according to designer Moshe Safdie


A newly-wed couple enjoy a canal ride inside the resort's shopping centre


Money-maker: The entrance to the casino, which costs nearly £50 to get in and is attracting 25,000 visitors each day


A man looks through a steel web art structure in one of the towers