Marbella Music Festivals 2026: The Complete Calendar — Every Festival, Every Date, Every Artist You Need to Know The Costa del Sol has quietly become one of Europe's best live music destinations — and 2026 is the biggest, most diverse and most international season yet. From Starlite's 49 nights of boutique concerts in a Marbella quarry to Marenostrum's 36-night run beneath the 10th-century Arab...