With Glastonbury, the U.K.’s biggest and most-beloved festival, taking a fallow year in 2026, the market for summer events and festivals had been blown wide open for many punters. The European festival circuit has never looked more appealing for those wanting to combine seeing some of the touring game’s biggest names and combine it with a jaunt to a holiday destination.
Mad Cool, held in Madrid, Spain (July 8-11), is a top option for punters i…