It would take a lifetime to go through all the NOA. It is a destination with many different activities to do. You can do trekking, bikking, motorcycling, 4×4, long walks through beautiful landscapes, learn about culinary and musical culture, etc.
If you want us to help you to plan your trip, send us an e-mail specifying the number of days that you are planning to stay and we will suggest a circuit to you.
Keep in mind that to go throught the Quebrada de Humahuaca you would need at least one week. To find out what to do in Tilcara we recommend you to visit this section: What to do in the Quebrada de Humahuaca