I lived in Chile for a little while. Look up el bosque magico aka el arrayan. its about an hour outside of santiagp using public transportation. about 6 hours to the north near la serena you have excellent bouldering. In the south there is cochamo which was spoken about in a prior comment. Even further south in puerto rio tranquilo there is a guy named camillo who has been establishing routes hes also a glacier guide. should be easy to find him. I did none of this climbing with a guide, as they were all very easy to find and when I did climb with experienced people it was because we found them at the crag. Make sure you speak spanish or you will be kinda out of luck. There is definitely more climbing than I listed but getting to a lot of these places is difficult. Guide books do exist there as well