The group took a day trip to Manuel Antonio stopping along the way in Jacó. Playa Jaco is the closest beach to San Jose, the Central Valley (about 2 hrs away) and is one of the most visited coastal destinations in Costa Rica.
Our friend and driver from our 2015 visit picked us in Grecia at 6:30am for the ride to Manuel Antonio. We planned to visit the National Park there. We hired a guide @ the park because I think it would be almost impossible to spot any animals without a guide. Even with a guide you will need to rely on his powerful telescope to see them. You can, however use your phone in connection with the telescope and get very beautiful clear photos. The guide is extra but I can't recall the price. It's probably around $32 for entry and a guide. Our guide was very good and showed us many local plants used for healing.
link above for video
(please excuse typo for Manuel Antonio on the intro)