In Bali, economic benefits from tourism in 2017 is IDR 50,241.07 billion and unfortunately still dominated by districts in the south and the east of Bali, e.g., Badung, Denpasar, and Karangasem. Better coastal environment conditions in Buleleng District, environmental problems related to water quality and domestic waste management in the south and the east of Bali, as well as Buleleng new airport planning in 2025, will undoubtedly be a turning point to economic competitiveness in this area. This review represents brief information of the methodology that can be used to identify and to map ecotourism activities spatially and temporally. With this review, the purpose is to give information and solution related to several methodologies, which can be used to address constraints that can lead to inappropriate expectation concerning the outcomes of the study of spatio-temporal mapping of ecotourism activities.

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Marine protected area (MPA) of West Buleleng, Pemuteran, Bali has the potential for the development of marine tourism activity through its coral reef ecosystem. Since 2011, the number of tourists visiting this area has been increasing every year and without proper management, it might harm the coral ecosystem. The purposes of this study are to analyze; the potential of coral reef resources based on the analysis of coral’s coverage area, the Tourism Suitability Index (TSI), and the carrying capacity to protect the coral reef ecosystem yet support the development of tourism activities in West Buleleng MPA. Data analysis methods consist of ecological analysis by measuring the potential and condition of coral reef ecosystems, the suitability index of tourism and the carrying capacity of the coral reef ecosystem. The results showed the potential of coral reef resources in West Buleleng MPA is fairly good with a percentage of coral cover about 57.08%. The suitability index of snorkeling and diving activities in the coral reef ecosystem was 76.9% with the carrying capacity of 36 tourists per day or 13.140 tourists per year for those tourism activities.