isla negra and cajon del maipo are examples of nice day trips you can take in chile as they are just a few hours outside of valparaiso and santiago -- enjoy!
isla negra is not an island, but a small town that lies along the pacific about two hours south of valparaiso. It is best known for the pablo neruda casa museum, one of his three homes. neruda himself named it after an out-cropping of dark rocks behind his house. unfortunately, but understandably, you are not allowed to take photos in the neruda house museums, but enjoy a look around.
Nice pictures. It's interesting how the southern hemisphere is like a mirror image of the northern hemisphere in similar climates. The pictures from Nerusa's house look like the northern California coast, or Oregon coast.