Uquía Turismo has its office on Caseros, facing the main plaza near the Cabildo, which makes it one of the easiest agencies in Salta to walk into and book. It sells the full set of regional day trips, with the Salinas Grandes and Cachi excursions the most asked for.
It is named after Uquía, the village in the Quebrada de Humahuaca whose church holds a famous series of colonial paintings of archangels dressed as Spanish musketeers — a detail worth asking the guide about on the Humahuaca run.
Walk in at the plaza or book on WhatsApp.