Via Rafting Trip
Another option is to book a rafting trip on the Rio Pacuare, Rio Sarapiqui or Rio Reventazon. This is a whole day trip and they will pick you up in your hotel in San José or Arenal and drop you off in Congo Bongo.
To return your trip to San José or Arenal it is also possible to have this service. So it’s kind of like getting your transportation for free!.