Indonesian Green Technology Journal E-ISSN. 2338-1787 ISSN. 2355-4010 24 Public Participation of Sustainable Tourism Development in The Coastal Area of Kili Kili Park In Wonocoyo Village, Panggul Subdistrict, Trenggalek District Yusup Saktiawan 1 , Bagyo Yanuwiadi 2 , Aminudin Afandhi 3 1 Management of Resources, Environment and Development. Postgraduate Program, Brawijaya University, Indonesia 2 Biology Department, Faculty of Mathematic and Natural Sciences, Brawijaya University, Indonesia 3 Plant Protection Department Agriculture Faculty, Brawijaya University, Indonesia Abstract The objectives of this research are focusing on three points: 1) to analyze the considerable factors that underpin the development of sustainable tourism in coastal area of Kili Kili Park in Wonocoyo village, Panggul subdistrict, Trenggalek district; 2) to analyze forms and types of public participation in developing sustainable tourism in coastal area of Kili Kili Park; and 3) to formulate the public strategy for sustainable tourism development in coastal areas of Kili Kili Park. In this research, the data collected and analyzed use interview, observation, and documentation and triangulation. The results of the study show the most influencial aspect for the sustainable development is a natural environment used as an interesting attraction, the level of public participation in coastal development is still lacking. Strategies that can be used to increase tourists are to enhance and strengthen the promotions, the tourism facilities and the tourist attractions. Key words: Public Participation, Coastal Area of Kili Kili Park Trenggalek district ( INTRODUCTION There are undoubted facts that Indonesia is the largest marine and archipelago country across the globe, having coastline of 81,000 km², the second longest after Canada, (Dahuri, 1998). It brings out most of Indonesia area which are coastal zone could potentially be maximized as sources of developing tourism object in the form of revitalization, aimed to improve an economic sector. To espouse a sustainable development, the entire process of revitalizing the tourism attractions must be accompanied intensively by the tremendous efforts to maintain and improve the quality of the environment. This way is a commitment in sustainability of tourism development in accordance with the declaration of Quebec as the result of members’ meeting from the International Ecotourism Society, (TIES, 2002). They have greatly produced a great agreement that in sustainable tourism, ecotourism contains in particular of efforts to provide the entirely certain advantages in the role of nature and culture conservation, mentioning the local public involvement in the process of planning, implementation, development and organizing for tourism will be able to generate societies’ economy welfare. Panggul is a subdistrict that has the larger maritime, one of the potential areas prospected clearly to concern on tourism is Wonocoyo Village, 54 km from southwest of Trenggalek city and 0 Km Correspondence address: Yusup Saktiawan Email : yusup.saktiawan69@gmail.com Address: afiliation address include post code 1 of Panggul. In the south, it is bordered by the Indonesian ocean with its beaches stretching from west to east of Wonocoyo area. The coastal stretch is well known as Kili Kili Park which has sand along in its banks. That seems like spectacular view when enjoyed at sunrise or sunset. In addition to the fantastic panorama, this place highlights other interesting attractions such as turtle breeding conservation managed by Public Watch Group (POKMASWAS). The group has been aimed to lead to the turtle-nesting parent, to transplant the turtle eggs to the conservation site, to accommodate and maintain the newly hatched Tukik (turtle’s child) as well as releasing the Tukik (Turtle’ child). The serious destruction of turtle ecosystems rises public awareness for beginning and preserving the conservation. It had pushed them to establish Public Watch Groups that has duties such as running the surveillance and guarding in the beach of Kili Kili Park, escorting the turtle's parent who finishes laying eggs into the sea again, and then moving the turtle eggs to the conservation site, securing them on both day and night, and accommodating and nurturing the turtle’s child just hatched until released back into the sea. Because local public participation has been still not yet involved massively, in order to optimalize the potential existences and enlarge the number of visitors, other indispensable strategies are required