An estimated 160,000 young guests have arrived in Split for this festival of electronic music which is taking place at the Park Mladeži stadium.
The Split part of the festival ends on Sunday.
After that performers and revellers move to the islands of Brač, Hvar and Vis.
The festival features Jean Philippe, Wekingz, Moon Shot, St. Vibe, Zunjino, Chvos, Tigi, Sound Of Yaz, Danny Black, Kaane, Medun, Fat Tony, Pete Spruce, Igor, Frank Walker, Adam De Great, Pretty Pink, Above &, Beyond, Rory Lynam b2b Dave Caffrey, Steve Fidelak, DJ Full Ferry, and Pero FullHouse.
On the first night, emergency services provided first aid to 150 revellers, and four of them had to be admitted to hospital, due to intoxication as well as being under the influence of drugs.
In most cases, first aid was offered due to sprained ankles, cuts, nausea and vomiting, and loss of conscience.