Summer is finally here – so how do you fancy swimming in turquoise waters between two skyscrapers in a transparent pool, suspended 35m in the air?

A video of exactly that has got people talking online, as swimmers are enjoying London’s 25m long ‘Sky Pool’ that opened in May – believed to be the “world’s first” of its kind.

The video was shot by the BBC near the US Embassy in Nine Elms, just south of the River Thames. All we can say is: we wouldn’t want to look down.

It’s pretty amazing to look at.

Here’s a view from an actual swimmer in the pool. 

And from someone watching underneath.

Some people aren’t convinced, though.

And to top it all off, there’s a catch. A big one.

Initially, people pointed out that you need to be a resident of Embassy Gardens to swim there. But the pool actually isn’t open to those living in the shared ownership part of the Embassy Gardens development.

A spokesperson for Embassy Gardens told HuffPost UK: “The shared-ownership properties at Embassy Gardens are owned and managed by Peabody and Optivo.

“When Peabody and Optivo acquired their elements of the development prior to construction, they had the option to choose which facilities they wanted to buy into for their residents. To retain a more affordable service charge, they elected to not include access to the health club, cinema, pools, business centre, lounges, concierge and post room.”