Santiago vs. Buenos Aires for "Gift of Time" Day
We're booked for this tour in Feb 2016. I'd like some thoughts as to how to use our gift of time day. My inclination is to use it at the start in Santiago, since it appears that we will have most of the final day free in Buenos Aires (flights leave in the evening).
So, if you've done this trip, I'd like your thoughts. Also, what did you do on your own in these two cities that you enjoyed? Anything you would avoid in hindsight? Thanks in advance for your help!