Hi, My family of 5 is considering a trip to Costa Rica in April 2011. We'll probably fly into San Jose and would like to visit Arenal and Manuel Antonio. We really don't want to drive ourselves around the country as I've heard it can be very difficult due to poorly marked roads and poor road conditions. I've heard people say "just rent a car with GPS" but I'm still not comfortable with that. Is there some kind of bus transportation that goes to those areas that is relatively easy and safe? Also, is it very expensive to hire a driver just for those long distances.