if you'll be there for a month, hopefully you'll have a bit of time on your hands. the central valley south of santiago is nice. you might also think about a drive over to the coast to check out isla negra. a stay at la candela there will rank high on my return. it is a bit worn around the edges, but the hotel is quiet, there's always a fire in the fireplace, and the service is exceptional. since you're here on hp, you likely enjoy the written word, so a visit to the neruda museum is in order. of all the travel books i have on chile, fodo'rs was the one that actually made the trip with me. have fun! and don't forget the piscos!!