In January 2016 we went on three tours with Magical Tour Chile – to the abandoned saltpetre towns of Humberstone & Santa Laura,to the remote historic town of Pisagua and to the Termas de Chusmiza. All were well organised and limited to small groups. The transportation was by comfortable minibus. We were the only non-native Spanish speakers, and Mauricio explained everything to us in perfectly comprehensible English. There are many tour companies to choose from in Iquique, but we would highly recommended Magical Tour.