I am planning a trip to Costa Rica in June. We will be picking up a car at the airport on arrival and returning in at the airport. So far we have Arenal 4 nights, Monteverde 4 nights, that leaves us with 6 additional nights. We would like to go to Manuel Antonio for 3 nights. I am not sure where we should go for the additional 3 nights. Any suggestions would be greatly appreciated. We are a young couple in our mid 20’s on a budget.