The serene ambience of the Doi Rom Yen National Park encompasses the protected forests of Pak Klong Nam Thao in Ban Na San district, Kanjanadit district, and Wiang Sa district. This lush rainforest is flourishing with notable tree species, including rubber trees, teak, calabash, silver birch, and sato. The peaks of the mountains are often shrouded in mist throughout the year, sheltering flora such as resin and various ferns, and serve as a primary source of the Tapi River. The terrain is predominantly volcanic rock, formed from the uplifting and eruption of a volcano. The park is influenced by the monsoon, experiencing two distinct seasons: the summer from January to April and the rainy season from May to December. Wildlife here includes goral, deer, wild boar, elephants, tapirs, and tigers. Accommodations and camping facilities are available, although visitors are advised to bring their own camping gear. For further information, you can contact Doi Rom Yen National Park at 0 7791 8611 or visit www.dnp.go.th. To reach the park, take Highway No. 4009 from Surathani to Ban Na San, a distance of 30 kilometers. Upon reaching Ban Chieng Phra, opposite the Kwan Suban school, turn left onto the rural road and continue for another 15 kilometers until you arrive at the park headquarters. Notable attractions within the park include: - **Dai Fa Waterfall**: The tallest waterfall in Surat Thani province, consisting of 22 tiers with the highest point comprising an 80-meter cliff. During the rainy season, water cascades down the cliff like a waterfall from the heavens, hence the name "Dai Fa." A nature trail spanning 15 kilometers leads through this scenic area. - **Khao Nong**: This is the highest mountain in Surat Thani province, reaching 1,530 meters. The summit is consistently enveloped in mist and boasts a cool, moist climate year-round. The mountain area features a dense rainforest with thick moss and algae adorning tree trunks. - **Khamin Cave (or Stinking Cave)**: This limestone cave is home to a vast colony of bats. Historically, it was a site for harvesting bat guano for fertilizer production. Near the cave entrance lies the shrine of Kwan Thao. - **Jeep Yard**: This large alcove bears traces of jeep tires from the past mining operations for bat dung. - **Kwan Thao Bank**: A limestone embankment featuring large stalagmites known as "Sao Ek" and "Lak Chai." The "Chao Fa" refers to an opening in the cave ceiling. - **Pink Curtain**: A curtain of limestone with pink streaks resembling a meditative Buddha image. - **Blue Curtain**: A large limestone curtain that, in some areas, resembles the head of an elephant. Camping facilities are available near Khamin cave. For more information, contact the Doi Rom Yen unit at 0 7791 8611. **San Yen Ridge**: This ridge marks the boundary between Surat Thani and Nakhon Si Thammarat provinces, appearing as a uniform line of mountains at a distance, ranging from 1,000 to 1,300 meters in height. It is home to diverse wildlife and flora. To travel from Surat Thani Province, follow Provincial Highway No. 4009 (Surat Thani - Ban Na San) for 33 kilometers until you reach Ban Chieng Phra, opposite Kwan Suban school, then turn left onto the rural road for another 15 kilometers to reach the national park headquarters and Dai Fa Waterfall, located in Moo 7, Lam Phun Subdistrict, Na San District, Surat Thani Province.