Comie down by bike from Piedra del Molino to Cachi. You can rent a bike in Salta and take it on the bus to Piedra del Molino (3200 m.o.s.l.) It is all down hill, and you go by the Enchanted Valley, the Tin Tin straight, Payogasta and finally Cachi (2280 m.o.s.l) Going very slowly you do it in 3 or 4 hours. You can go back to Salta by bus. Look out for excursions.
Content courtesy of Nomada Magazine