We booked through agoda.com. At the time of booking no double rooms were listed as available so we booked a triple room. After arriving it was clear that there were many double rooms available. In contrast to our experience at San Martin in Cartagena, Atlantic Blue offered no reduction eventhough we were put in a double room. I did not make a scene but neither did I appreciate their attitude. This hotel is OK in many respects but the location is awful and the breakfast has scant choices. In addition, there is no elevator and all rooms require climbing up stairs. We stayed the three nights we booked then moved to the El Prado for our last two nights.