I went on the walking tour but they also offer Segway tours. My guide made me taste different fruits straight from the trees and explained everything about the local fauna and flora. The tour involves a hike through the rain forest, visiting the clear water lakes with turtles and fish, and swimming in a lake in were you can see the bottom at 8 meters. This park is accessible to folks staying at the Punta Cana Resort but you can also book an appointment to visit for a fairly reasonable price. Put on bug spray when you go.