The main entrance is near the Pile gate. Start your 2km tour by heading towards the sea. Admire the row of façades and the round-tiled roofs which have made Dubrovnik famous. Note the church towers of the Franciscan convent and Dominican monastery, and the domes of St Ignatius. Pass by the first square tower, which was added in the 14C, along with a dozen others, to the defence system. Moving on towards the port, reflect on how vulnerable the wall was at this point, with its two gates affording access to the city.