If you want to get over the Wall of Charles III from the harbor, there is a double staircase located at the end of the main pier. However, a better path to begin your walking tour of Cartagena is to turn left (west) and follow Paseo Alfonso XIII. This waterfront street leads to several major landmarks worth visiting. Above the door of the building in the background is the name Armada Española Servicios Generales. This is a temporary residence for visiting seaman, marines and naval officers provided by the Spanish Navy.