If you're coming down here to Jaco, let me know. I don't know much about Atenas other than some expats like its location, 20 minutes to the Central Valley and a little under an hour to the beach. Also, it's at a little higher elevation so it's a little cooler, not sure about 80 though. Mid to high 80s is more like it. I've been to Atenas a couple of times but there doesn't seem to be much of a town.