Romería de Valme Activity · Dos Hermanas, Comarca Metropolitana de Sevilla, Seville Pilgrimage in honor of Nuestra Señora de Valme, patron saint of the city, held on the third Sunday of October and declared a Fiesta de Interés Turístico Nacional in 1976. Dos Hermanas's Feria de Mayo, held about four weeks after Holy Week, was declared of National Tourist Interest in 1998. Photo: Cardenasg (Public domain) What to see and do in Dos Hermanas