Bo Khlueng Hot Stream is a famous natural mineral spring in Suan Phueng District, Ratchaburi Province. Located amidst the forests and mountains of the Tenasserim Mountains, it originates from a hot spring stream flowing from underground through cracks in natural rock layers. The hot water slowly flows through rocks, gravel, and forests into the soaking pools below, creating a warm stream with water flowing year-round, even during the dry season. This makes it a popular health and wellness destination for both Thai and international tourists, especially those seeking escape from the hustle and bustle of big cities and a chance to connect with nature.

The defining characteristic of Bo Khlueng Hot Stream is its natural mineral water, with an average temperature of approximately 50–57 degrees Celsius (120–136 degrees Fahrenheit), considered ideal for relaxing soaks. The water is clear and clean, with almost no pungent sulfur smell like many other hot springs in Thailand, making it a more comfortable bathing experience. Information from local sources indicates that the water has a low concentration of natural minerals, making it less likely to irritate the skin. It is also believed to stimulate blood circulation, reduce fatigue, and promote relaxation after travel or outdoor activities.

The area features various bathing zones to cater to different tourist preferences. These include natural earthen pools that simulate a forest bathing environment, offering a sense of closeness to nature and tranquility, as well as improved tiled pools for greater convenience and cleanliness, ideal for those seeking a more comfortable bathing experience. There are also popular free foot-soaking areas for those who prefer not to fully immerse their feet, and relaxing areas by the stream with benches under the trees to enjoy the natural surroundings. Overall, the area maintains its natural beauty quite well, surrounded by trees and the fresh air of Suan Phueng, creating a peaceful and relaxing atmosphere perfect for health and wellness.

Another highlight is the source of the hot spring, located approximately 150 meters from the bathing areas. Tourists can walk along this nature trail and observe the hot spring bubbling up from underground. This area is considered to have the highest temperature in the vicinity. However, swimming and foot-soaking are prohibited in some parts of the source area as it is a shared water source for local villagers. Furthermore, during the winter months, especially in the early morning, steam can be seen rising above the water's surface like a thin mist, creating a beautiful and unique atmosphere characteristic of the Bo Khlung hot spring. This makes it one of the most famous natural and health tourism destinations in Ratchaburi province.

• From Ratchaburi city center, take Highway 3208 towards Suan Phueng. At the Chat Pa Wai intersection, turn left onto Highway 3087 and follow the signs for Bo Khlueng Hot Stream (located approximately 10 km past Baan Hom Tien).

• Visit in the morning or evening for cooler weather.

• Winter mornings offer beautiful steam over the water surface.

• Bring your own towel and change of clothes for convenience.

• Avoid soaking for more than 15–20 minutes at a time.

Admission Fees:

• Site Entrance Fee: 5 THB per person (Same for adults and children)

• Hot Spring Bathing Fee:Tiled Pool (Standard): Adults 50 THB / Children 30 THB

• Earth Pool (Natural): Adults 30 THB / Children 10 THB

Opening Hours:

• Monday – Friday: 08:00 AM – 05:00 PM

• Saturday – Sunday & Public Holidays: 08:00 AM – 06:00 PM