Llerena en el Camino de la Frontera Curiosity · Llerena, Campiña Sur, Badajoz Image of Llerena, not of the place itself. Llerena is one of the stages of the historic 'Camino de la Frontera' (Border Way), a Way of Saint James pilgrimage route that crosses the Campiña Sur of the province of Badajoz on its way to Santiago de Compostela. Photo: Kolforn (CC BY 3.0) What to see and do in Llerena