This study presents a framework of issues to analyze Porter’s (The Competitive Advantage of Nations, 1990) Diamond model, and develops factors for determining the optimality of an international resort park location using the modified Delphi model. A panel of 16 experts from various backgrounds, including academia, government and business, provided input for the selection of location factors. Following three discussions, panel members reached consensus and selected the following set of 26 factors for optimizing location selection for international resort parks. This study also provides direction for applying the proposed model and suggestions for future research.