Dehesa Boyal of Sevilla la Nueva Nature · Sevilla la Nueva, Comarca Sur, Madrid Image of Sevilla la Nueva, not of the place itself. A municipal estate in the far north-west of the district where holm oak woodland mixes with pines and ash trees and black vultures fly overhead; water snakes and terrapins live in its two waterlogged areas, and the San Isidro pilgrimage festival is held there. Photo: Dirección General de Turismo. Consejería de Economía e Innovación Tecnológica. Comunidad de Madrid. (CC BY 3.0 es) What to see and do in Sevilla la Nueva