We are spending two weeks in Costa Rica over Christmas/New Years. We are flying in/out of Liberia. The first week of our vacation we are spending traveling around, including to the Arenal area. We have reserved a 4WD vehicle for that part of the trip, and are wondering if we should keep it to go to Nosara (where we are spending week 2), or just hire a car to get us there and back to Liberia. If we are spending the week in Nosara, do we need a car to get around? Are there any areas of interest close by that require us to drive?