||In the Brazilian parks’ institutional field, EE is an integrating axis of the public use, as it is a planned activity for all the categories established by the National System of Conservation Unities’ law (SNUC), that regulate this kind of protected area in Brazil. Considering the process of parks’ institutionalization and the consequent recognition of its importance for society, EE could enable a closer relationship among managers, adjacent communities and visitors (Pimentel and Magro, 2012). The Environmental Interpretation (EI) is based on practical experience of natural areas’ visiting, to inform, to raise awareness, to educate and to encourage the ability of observation and reflection about the relations of people with nature (Tilden, 1977). This can provide a structure for carrying out educational activities and contribute to the promotion of social mobilization in support of environmental conservation. Thus, the EI is an enabling tool for Environmental Education, both generating positive impacts related to public use in parks (Cole, 2012). So, Interpretative Trails (IT) should stimulate new perceptions about nature based on a critical stance to allow this new environmental awareness. The objective of this paper is to present the development of two Interpretative Trails for Environmental Education in the Serra da Tiririca State Park (RJ – Brazil).