I just used Salta as a hub for visiting Tilcara to the north, Cafayate to the south, and Cachi to the west. The city is comfortable and pretty and genuine, with countless food stalls near the long park by the bus station.
There's a teleférico that goes up a big hill for nice views and a parallel trail that's a 40 minute stair hike.
To make up for the unavoidably expensive taxi in Iguazu, I walked to and from the airport in Salta. There was a bike trail along the road most of the way and it took about 2 1/2 hours.
My blog serves two purposes: to let friends and family know what I'm up to while on trips abroad, and to give travel advice from the perspective of a fellow traveler, rather than from a guidebook writer.
I only use a smartphone for the writing and photos, so excuse any errors or blurs.
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