Paradise Cave, the longest dry cave in Asia, is heralded as the "Underground Palace" and is located within the bounds of the Phong Nha - Ke Bang National Park nature reserve. This pristine cave boasts hundreds of stalactites, stalagmites, and magnificent rock formations, all glistening enchantingly.
U Bo Mountain, the narrowest point in Vietnam, offers air as fresh as the highlands of Da Lat. Standing at an altitude of 1000 meters and seldom visited, this area preserves a pristine landscape with a vast primeval forest, hosting a variety of rare and endemic flora and fauna found nowhere else. From here, visitors can overlook the entire city of Dong Hoi, where forested mountains, plains, and sea seamlessly converge.