Sai Son Rock Mountain Travel Guide – Overview, Attractions & Visiting Timings

Núi Sài Sơn (Sai Son Mountain) is a well-known natural and cultural landmark located in Quốc Oai District, Hanoi, Vietnam, approximately 25 km southwest of central Hanoi. Nestled within the scenic Sai Son limestone mountain range, this destination is most famous for housing the historic Thầy Pagoda (Chùa Thầy) at its foothills. Núi Sài Sơn offers a blend of lush greenery, rugged limestone formations, ancient caves, and panoramic viewpoints, making it a popular spot for nature lovers, spiritual travelers, and weekend explorers from Hanoi. Easily accessible by road from the city, Sai Son Mountain is an ideal destination for short trips, hiking, photography, and cultural tourism, especially during festivals and cooler months.