Yet another impulsive trip

So, about 24 hours ago I decided to take this week and make an epic trip to Argentina's northwest, specifically the Salta and Jujuy provinces. This area is known for its astounding beauty (often compared to the American Southwest, Southern Utah, New Mexico, etc), as well as its rich pre-Columbian history. Here is the somewhat ambitious itinerary that I threw together for myself:

• Fly on Monday afternoon to Salta, arriving at 6pm.
• Monday evening, take a bus directly to Jujuy (leaves around 8pm, duration 3 hours).
• Tuesday morning, rent a car and spend the day driving around the province. I'm hoping to see Humahuaca and the Cerro de 7 Colores, among other places.
• Tuesday night, take the bus back to Salta.
• Wednesday, wake up at the crack of dawn for the epic Tren a los Nubes (Train to the clouds). The 16-hour roundtrip is South America's most famous train, with magnificent bridges and the highest ascent (almost 14,000 feet at the destination) of any train in the wolrd.
• Thursday, hang out around Salta, a city known for it's rich cultural heritage and good eats.
• Thursday at 4pm, board a bus for an epic 18-hour ride back to Buenos Aires in Cama Ejecutiva class, also known as really comfy seats. I picked the seat at the very front of a double-decker, giving me an unfettered vista of the scenery for the four hours or so until sunset.