The market gardens of the Henares canal Food and drink · Marchamalo, La Campiña, Guadalajara Image of Marchamalo, not of the place itself. The canal opened in the nineteenth century made it possible to irrigate the plain and gave the countryside a market garden of mild vegetables: chard, green beans, peppers and cardoon, which reach the markets of the provincial capital and take the lead in the comarca's seasonal stews. Photo: Ignacio Pérez Anguio (CC BY-SA 3.0) What to see and do in Marchamalo