Rooftop Spa on floor 30 or even further up

Nearly two weeks ago on April, 08th we went to visit a Dutch couple in the city. We met them at a traveller survey of the TNT magazine. They invited us to their apartment in Liverpool Street and told us to bring our swimmers. After some drinks we went on the rooftop of the skyscraper and enjoyed the spa for about half an hour. Later on we went to the city and danced in Scruffy Murphys and Paddys Irish Pub.