In the 1990s, tourism was still a nascent industry in the Philippines that few people fully understood and appreciated. But said industry has a major role in environmental, cultural, and heritage protection. The present situation already indicates a high appreciation of tourism as a major socio-economic contributor through sustainable tourism ecotourism and heritage conservation through tourism. However, said appreciation is still limited to the conceptual level of knowledge focused on developing tourism products and corresponding services. There is still a need for Filipinos to deepen their technical knowledge and skills in adequately managing and protecting natural and cultural heritage, which is even made more significant due to the threats of climate change. These include applied knowledge on carrying capacity, coastal, zoning, and other concepts or ideas such as the Bruun Rule and Xeriscaping.