Stålboga Summer Opera

59°14′09″N 16°49′17″E / 59.23583°N 16.82139°E / 59.23583; 16.82139 Stålboga Summer Opera (Swedish: Stålboga sommaropera) is an annual event staged at the privately owned Stålboga Manor House on a small peninsula in the lake Eklången 35 kilometers from Eskilstuna and 100 kilometers from Stockholm, Sweden.