Hike through the beautiful countryside surrounding Window Cave and then explore the interior of this voluminous cave system that sits atop a limestone cliff. While driving inland toward the Arecibo River Valley, you will notice the terrain becoming greener and more mountainous. A leisurely walk through the woodlands around the cave will reveal some of the more unusual flora and fauna that flourish in the tropical landscape. Still, the natural wonders inside the cave system are the real showstoppers. As you follow an environmentalist from cave to cave, you will learn about the Taino Indians that once lived in this area and see pre-Columbian petroglyphs carved into the rock surfaces. The caves are full of eerily shaped stalactites and stalagmites, which look even more dramatic when illuminated. The highlight will be standing before large namesake opening in Window Cave that offers a sweeping view of the lush valley that lies 700 feet below.