If you love nature, then you will enjoy trekking in the cloud forest. I recommend that you choose a day where is not raining so that you gan get a better view of the fauna as if it rains they will hardly come out! I recommend doing also a night walk in the forest as you will be amazed to see many species of birds like Tucans and Papagallo sleeping. If you are stay in Santa Elena There is a public bus that you take early in the morning that leaves you in the entrance of the park for 2 usd each way! The park entrance is 17 dlls USA. Make sure that you have with you a k way.