If you love mountain, pure nature and fresh air, Phu Tub Berk, is the place that you must visit. It is situated in Phetchabun, in the northern part of Thailand. It is near the well-known Phu Hin Rong Kla and not far away from Bangkok, approx. hours only.
Phu Tub Berk is a great travel destination of Thailand that you should not miss visiting!
cr. pic. http://www.internsrockdc.com/content/tag/%E0%B8%A0%E0%B8%B9%E0%B8%97%E0%B8%B1%E0%B8%9A%E0%B9%80%E0%B8%9A%E0%B8%B4%E0%B8%81