I will be travelling from Santiago Chile to Mendoza Argentina. I have done a lot of research and several people say to fly but I would prefer to take a bus and see the Andes Mountains. I wanted to do a daytrip to some highlights of the Andes (i.e. Aconagua, etc.) but I've noticed that these tours pick you up from Mendoza and then drive you all the way west back towards Chile. It seems pointless for us to spend 7 hours travelling east only to spend several hours travelling west on a tour. I was wondering if there is any tour that picks you up in Santiago and drops you off in Mendoza. Something that would serve the double purpose of travel and touring at the same time. I've found a company that does this exact tour but in the opposite direction (Mendoza-Santiago) but I would prefer to travel the other way and can't seem to find anything! Is there a reason for that? Is there any thing like what I'm describing that someone can recommend? Thanks!