Location: Zrće Beach, Croatia
Capacity: 2,000
It's fair to say that without Aquarius and its sister clubs on Zrće Beach on the island of Pag, the summer scene in Croatia wouldn't be half as vibrant. What was once a small bar more than 20 years ago is now at the heart of many festival operations, from Hideout to Sonus to Barrakud. It boasts open-air pools, wooden decks, spectacular views out to sea, and beefy sound systems that run from dusk till dawn and have welcomed a real who's who of international talent — from ARTBAT to Marco Faraone, Reinier Zonneveld, Tijana T and many more. As well as the big-name events, in-house promotions also offer up EDM stars, and around a million people a year are estimated to pass through its doors and party under its palm trees.