<p>Extreme heat events pose growing challenges to national parks, threatening both visitor safety and the quality of nature-based experiences. This technical report investigates passive cooling strategies suitable for protected areas with strict development constraints, focusing on Taijiang National Park in Taiwan. Two complementary empirical studies were conducted to assess microclimatic conditions and the effectiveness of heat mitigation measures. Study 1 examined the influence of paving materials and shading on surface temperatures through multi-month field measurements and multiple regression analysis. The results highlighted significant differences across materials, with shading consistently reducing surface heat. Study 2 evaluated the cooling performance of a lightweight shading structure throughout the day, using repeated temperature measurements at shaded and unshaded spots under a lattice-roof pavilion. Findings revealed that shading provided the greatest thermal relief during midday, aligning with peak visitor vulnerability. The report discusses how passive cooling techniques—such as birdwatching walls, shade-integrated interpretive structures, and thermally suitable materials—can be paired with educational programming to enhance visitor engagement. They also demonstrate the feasibility of using portable tools and low-cost methods to guide adaptive landscape planning. The study also visualizes surface temperature variation through box plots to enhance interpretability. These integrated strategies offer scalable solutions for improving thermal comfort in national parks while maintaining ecological integrity and low-impact design principles.</p>