The Guajataca Forest is a nice place some 80 years ago, the land was set aside to become a forest. The walking paths were constructed in the 1930s and 1940s by the Civil Conservation Corps. It was designated a state forest in 1943. It is maintained by the Departamento de Recursos Naturales y Ambientes . And to date, it continues to be great place where flora and fauna are protected and people can have a well-maintained place to enjoy nature. The lake receives flow from the Guajataca River and can be used for fishing. The reservoir provides water to the inhabitants of northwestern Puerto Rico. It is also the location of Camp Guajataca, the island’s main camping grounds of the Boy Scouts of America. The lake area is 10 degrees cooler than the rest of the island and provides year round recreational opportunities and outdoor activities including fishing for bass, tilapia and catfish, kayaking, nature watching and relaxing in general. This trail is packed earth, with the occasional limestone rock sticking up but I found it relatively flat and easy to walk. You will enjoy birds and butterflies along the way. This trail also includes a little side trail that leads to the Observation Tower. In my opinion, this is the only strenuous part of the Interpretative Trail it is pretty steep and then there are the stairs up in the tower. I found the effort is worth it . But if you can’t do it, there is a bench at the turn-off for this side trail where one can sit and wait for the others in their party to go up to the tower.