The pine forests of Coca Nature · Coca, Tierra de Pinares, Segovia Image of Coca, not of the place itself. Between the rivers Eresma and Voltoya extend the pinewoods that sustain the municipality's economy: timber, resin and pine nuts come out of a sea of maritime and stone pine that gives its name to the whole comarca of Tierra de Pinares. Photo: Cruccone (CC BY 3.0) What to see and do in Coca