Going Dec 20-30--- husband, me and two twenty-something sons. First time in South America, but lots of travel in Latin America - one son fluent Spanish. Not enough time for Galapagos. What is reasonable itinerary to see a bit of variety and not spend whole time just travelling to get there. Enjoy mix of city/architecture/history with some outdoorsy activity/nature/beauty. Always good food, not shoppers. Any help appreciated.