Hello, I was wondering if it is easy to traverse the Atacama Region, and the sites to be seen there, using a rental car? We will be there during the last week of March 2014. I have a car rented when we arrive at Calama Airport and we have lodging in San Pedro during our stay, the gist of my question is will there be parking (or is it allowed to park) and go hike or visit the various sites while in the region? A lot of places have "excursions" that are able to be booked with a guide, but we would rather do many things ourselves, with maybe just be pointed in the right direction every now and then by some at the hotel or in the region. Please let me know if this is a viable way to experience the region. Many thanks!