Although the recreational value of numerous sites in developed countries has been determined in the last quarter century, this is the first study we know of which values a tropical rain forest or a natural site in a developing nation. This study applies the well known travel cost method (2-4) to measure recreation values. The travel cost method estimates the value users place upon a site they visit from their travel behavior. Thus, the technique does not depend upon a sophisticated questionnaire of user opinion but rather upon the choices users are observed to make in visiting a site. The travel cost methodology is briefly sketched in the next section. In the third section, we discuss the data, empirical methods used, and results. The paper concludes with some final observations