Anyone been to either or both of these parks in Bolivia? We will be there for 3 weeks and have 2-3 extra days in our itinerary and have pretty much narrowed it down to adding one of these. They aren't top sights so while I've read the basics and seen a few blogs and pics on them, I'm having a hard time deciding since I'm interested in both. Someone with experience to share may be hugely valuable in helping us decide, TIA!

I have been to both places -- they are quite different. Torotoro is excellent for hiking, canyons, caves, and dinosaur tracks (2-3 days is perfect; it is a bumpy road getting there). Sajama is all high-altitude beauty, llamas, hot springs, and volcanoes - all beautiful, but remote and quite cold. Go to Torotoro for adventure and geology; go to Sajama for dramatically beautiful landscapes and solitude.