Canopy Tour
Most commonly called a “Canopy Tour”, rather than “Zip Lining” this activity is more about zooming along steel cables through the treetops than it is about learning about the rainforest canopy.
There are currently two canopy tours in the Montezuma area. One in Montezuma, which has the advantage of including a trip to the third pool of Montezuma Falls, and the Malpais canopy tour, which is longer and faster.
Both are great in their own way, but the Montezuma one is probably more popular because it includes the waterfall, so many tourists, even on the Santa Teresa / Malpais side of the peninsula, will head to Montezuma to be able to do these two popular activities together.
The canopy tour is a very popular activity here, and in Costa Rica in general, and a large percentage of travelers to the area do it at least once. Groups from Tambor’s large Barcelo resort also typically come to Montezuma for this.
Canopy Tours:

White Tip Sharks in Montezuma
Montezuma and Tortuga Islands have white tip sharks in their waters.

White Faced Capuchin Monkey
Costa Rica’s most intelligent primate, the white faced monkey