Visit the Marble Mountains on a day or half-day trip from Da Nang or Hoi An. Or, stop by as part of a sightseeing journey to or from Hue further north. Most tours focus on the caves, particularly Am Phu Cave, with its gory representation of Buddhist Hell, and the bomb-damaged Huyen Khong Cave. But, you also can rock climb and rappel and hike the 150 steps to the summit of Thủy Sơn, the largest of the mountains. A glass elevator will take you partway up Thủy Sơn for an extra fee.
Many Marble Mountains tours include nearby attractions, such as the UNESCO World Heritage Site of My Son, the coastal road Hai Van Pass, the Linh Ung Pagoda in Tra Son (home to a Lady Buddha statue), or the Golden Bridge.