We very much enjoyed taking a 3-hour guided tour through Santa Elena. Call ahead to reserve a guide. This makes a huge difference unless you are already an expert in spotting and identifying the area's flora and fauna. There is no phone on site for calling a taxi, so plan ahead or take the shuttle back to town for $2/head. Our guide was friendly and knowledgeable and the tour group was kept small. Make sure you bring rain gear. Even if it is not raining at your hotel, it can easily be pouring in the forest.
This review is the subjective opinion of a TravelPod member and not of TravelPod.com.