The bicycle crossing of the Culebra Activity · Tábara, Tierra de Tábara, Zamora Image of Tábara, not of the place itself. A circular itinerary of some two hundred kilometres by mountain bike that starts in Tábara and runs through the sierra along forest tracks among oak woods and heaths, designed to be completed over several days. Photo: Josebasegura (CC BY-SA 4.0) What to see and do in Tábara