The Sky Pool is situated in the affluent Embassy Gardens development in London's Nine Elms, and it is slung between two buildings with a completely transparent base that allows swimmers to feel as if they're flying high above the ground.
It is high, too. 115 feet, to be precise.
The pool isn't officially open just yet, we'll have to wait until May 19 for that, but the first swimmers have been in to test it, and some pictures have captured what the experience is going to look like.
It's fair to say that it will be a unique experience. You might just want to give it a miss if you're worried about heights.
The 82-foot pool holds 50 tonnes of water and also features a rooftop bar and spa providing the ultimate sky-high package for members of the Eg:le club that houses it.
It was built by structural engineers Eckersley O'Callaghan, and their director Brian Eckersley said: "Once you swim off, you can look right down. It will be like flying."
Announcing the launch of the project, Embassy Gardens shared an Instagram post boasting about how the pool is filled with '148,000 litres of water and allow swimmers to float 35 metres in the air between two residential buildings'.
They added: "Our 'never been done before world first' SKY POOL is getting ready to launch next month on 19 May."
According to the Embassy Gardens website, the concept was first devised on a 'hot summer's day in 2013'.
They explained: "Our creative teams gathered to discuss where to locate Embassy Gardens' outdoor swimming pool. We decided the only space large enough was between the Legacy Buildings.
"As thinking developed, the gauntlet was thrown down: the pool should be a sky pool, something transparent so swimmers could see the ground, and people below could see the sky."
So, they got in touch with the architectural firms Hal Currey and Arup Associates, as well as Eckersley O'Callaghan, who between them came up with the ideas for the pool, and how it would work.
The website continues: "After a series of technical drawings and behavioural analyses, the dimensions of the pool were decided,
"With sides 200mm thick and 3.2 metres deep, and with a bottom 300mm thick, the 50-tonne acrylic pool will span the 14-metres between the buildings, with steps and filtrations systems sitting either end, and five modes of lighting to add to the feeling of magic."