It’s 8pm on a Friday night and I’m looking out over a sea of bodies. Sipping my piña colada, I watch as a man leaps up and down on a podium in time to the bouncy beats that have started to crank up. Coloured lights slowly shift, casting shadows across the vast space, which is peppered with giant palm trees and exotic plants. It’s a lively scene – and it’s unlike any Friday night I’ve ever had before. This isn’t a nightclub, but Therme, Europe’s biggest spa, and what seems to be the coolest place in Romania to spend your Friday night.