From Uyuni/Oruro I'll have to choose (don't have time for both): go to La Paz or take the road to Arequipa (via Chili).
Which city and surroundings should I choose? Is Colca Canyon nicer than for example some trips from La Paz like Chacaltaya or bike downhill to Coroico? And which city is more beautiful and relaxed to stay for a day or so?
Thanks in advance.
I loved Arequipa and found it one of the nicest on my trip. Though I really liked LaPaz as well, it had nothing on Arequipa. If you are short on time though, the Colca Canyon isn't really worth doing on a day trip. You need three days to spare to really get into it. However, you can do a day trip from LaPaz down the "Death Road" which is great. So I guess it depends on what is your priority - the city, or the side trip. Its a shame that it sounds like you don't have time to get to Lake Titicaca which was defienlty a highlight of the region.
If you would like you could check out my blog at www.degolasse.blogspot.com I have entries on LaPaz, "Death Road", Arequipa, and Colca, so maybe it can help decide what you find more intersting.
Did the 3d/2n Colca Canyon trek in April late March 2005 and it was awesome. I liked Pa Paz but Arequipa was far nicer in my opinion.
Hard choice I'm afraid, especially if you would only have a day or so in Arequipa.
P.S. I have some pics of Colca on my profile.