The first day of the Summerside Festival 2026 in Grenchen (which took place on Thursday, June 25, 2026) officially opened the historic final edition in the Swiss town. Despite a record-breaking heatwave reaching 35 degrees Celsius in the shade, thousands of metalheads flooded the concert grounds for a high-intensity heavy metal marathon. Here is the recap of the five main shows that set the Main Stage on fire.

P.O.D.

Skindred

Brothers of Metal

Doro

Helloween