About 2km past the trailhead to Cerro Chirripó you will find the entrance to the mystical, magical Cloudbridge Nature Reserve. Covering 182 hectares on the side of Cerro Chirripó, this private reserve is an ongoing reforestation and preservation project spearheaded by New Yorkers Ian and Genevieve Giddy. A network of trails traverses the property, which is easy to explore independently. Even if you don't get far past the entrance, you'll find two waterfalls, including the magnificent Catarata Pacifica.
The trails range from the gentle Sendero Catarata Pacifica, leading to the waterfalls, to the steep uphill Sendero Montaña that joins the main trail up Cerro Chirripó.
Volunteer reforestation and conservation opportunities are listed on the reserve's website.