If you are coming from the bus station you can take almost any bus outside the station as most through the middle, eg 4.11, 3, 38, etc.Once you're in the center of the street looking for Venustiano Carranza, which is next to the Cathedral, take this street and walk three blocks to St. Mark's garden, a street before reaching the garden is Eduardo J. Correa, who is the street of Hostal Posada.Taxis are very cheap, so from the bus station all arround will charge $ 20.00 pesos