Explore the Pu Sam Cap cave complex The Pusamcap cave complex is located at an altitude of 1,300 to 1,700 meters above sea level, stretching across a vast limestone mountain range. With more than 10 large and small caves, Pusamcap is a natural masterpiece created over millions of years, attractive by its rich and diverse stalactite system. Each cave here has its own beauty, but the two main caves that stand out the most are: Thien Mon Cave and Thien Duong Cave.