Residencial 911, Arica, Chile (April 2014 - 1 night, May 2014 - 2 nights). The cheapest of the bunch of hotels across the road from the bus terminal at $6000 pesos ($11USD), the others cost $12000 pesos. My own room with tv and wifi. 2 shared bathrooms for the whole place, you need to be quick and early! I stayed here on 2 occasions for 3 nights in all. Run by a nice lady and her helpers. For the price I really recommend it!