This document discusses sustainable tourism development and its impact on the economy, environment, and society. It explores the advantages and disadvantages of public/private sector tourism planning partnership and analyzes the features of tourism development planning at different levels. The significance of interactive planning system and process in tourism development is also discussed. Additionally, different methods to measure tourist impact with reference to the Philippines case study are explored, along with evaluating methods of resolving conflicts of interest and ensuring the future well-being of tourism development.