The Berkeley, London, has teamed up with award-winning synchronised swimming team Aquabatix to offer a weekly 90-minute master class in the hotel’s rooftop pool this July, treating underwater ballerinas to panoramic views of Hyde Park.

The Aquabatix team will first showcase one of their award-winning routines, after which attendees will enter the water to learn some of the key movements. By the end of the class, the group of maximum 8 girls will be able to perform a complete routine.

Ninety-minute classes run 6pm-7.30pm on 4, 11, 18 and 25 July 2012, and cost £125 per person.The classes are open to hotel guests and visitors alike.