My husband and I will be in Santiago mid-January for a week. We'd like to take two wine tours (Concha y Toro and one further out) and a day trip to Valparaiso and Vina del Mar. Is it better to arrange these ahead of time or is this something we can easily do through our hotel (the Radisson) or a tourist office once we get there? Also, any suggestions as to tour operators for these kinds of tours? Thanks in advance for your help!