I would like to get a bus from Salta to San Pedro de Atacama in September. I find conflicting information on wesbites, with some places saying only gemini and pullman do this route and not on Fridays and others saying andesmar also does this route, including on Fridays.
Does anyone know what the current situation is, and is it often subject to change? Also, is there a way to book reliably in advance? I don't like the idea of arriving to find we cant get the bus the day we hoped as this will affect everything else we book.