Huai Tha Khoei Reservoir, located in Ban Kha District, Ratchaburi Province, is a medium-sized reservoir built by the Royal Irrigation Department to address water shortages for agriculture and community consumption in the area. Surrounded by the complex mountain ranges and natural forests of the Tenasserim Mountains, the reservoir boasts a unique landscape distinct from other reservoirs in central Thailand. The expansive water, contrasting with the lush green mountains and clear sky, makes it a popular destination for tourists seeking relaxation, fresh air, and tranquil natural scenery, especially during the rainy and winter seasons when the atmosphere is particularly refreshing.

A key highlight of Huai Tha Khoei Reservoir is its atmosphere resembling a lake nestled in a valley. The paved road around the reservoir allows for convenient scenic drives. Along the way, you'll find views of the vast water interspersed with grasslands and hills. In some sections, the mountain ranges are beautifully reflected on the water's surface, particularly stunning during sunset. The golden light gradually changes the color of the sky and reflects on the water, creating a breathtaking spectacle. It's one of the most popular sunset viewing spots in Ban Kha District, and a favorite destination for nature photographers and camping enthusiasts year-round.

Along the reservoir's edge, there are several natural grassy areas perfect for relaxing and camping. Currently, local operators have opened campsites, cafes, and small accommodations scattered around the reservoir, offering tourists a variety of ways to enjoy nature, from camping by the water and enjoying the morning views to staying overnight to witness the morning mist over the water. During certain periods, water activities such as kayaking or SUP boarding are offered by private providers, adding to the tourist experience. However, the overall atmosphere remains peaceful and uncrowded, unlike the main tourist areas in Ratchaburi city or Suan Phueng, making it ideal for those seeking escape from the hustle and bustle and truly relaxing in nature.

During the rainy season, Huai Tha Khae Reservoir is especially beautiful because the water level rises, filling the entire area. It's surrounded by lush green mountains and forests, offering cool, comfortable air and the chance of light mist in the mornings, especially after a fresh rain, which greatly enhances the scenery around the reservoir. In winter, the temperature in Ban Kha is cooler than in the surrounding plains, making it suitable for camping and watching the sunrise. Even during the summer, although the water level may drop at times, the views of the mountains and the open sky are still stunning. This makes it a year-round tourist destination, depending on the atmosphere tourists desire.

Beyond the natural beauty... The area around the reservoir is also close to other natural attractions in Ban Kha and Suan Phueng districts, such as natural hot springs, hilltop viewpoints, and community-based tourism sites, making it convenient for tourists to plan consecutive trips. Furthermore, Huai Tha Khai Reservoir is easily accessible for tourists from Bangkok and nearby provinces by private car within a few hours. This has made it an increasingly popular natural tourist destination in Ratchaburi province, especially among nature lovers, photographers, and campers seeking mountain and reservoir views in a tranquil and natural setting.

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How to Get There

• From Ratchaburi city center, take Highway 3208 towards Suan Phueng District, then turn left onto Highway 3313 heading towards Ban Kha District. Follow the clear directional signage leading to Huai Tha Khoei Reservoir. The total distance from Ratchaburi city center is approximately 80 kilometers (about 1 hour and 20 minutes drive). The road is fully paved and accessible for all types of vehicles.

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Travel Tips

• Visit between 16:00–18:30 for the best sunset scenery.

• The rainy season offers lush green landscapes and misty mornings.

• Reserve camping spots in advance during weekends and winter months.

• Bring a jacket or windbreaker for cool evenings and early mornings.

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Admission Fees:

• Free admission.

Opening Hours:

• Open daily, 24 hours (For public viewing spots, visiting between 06:00 and 18:30 is recommended for safety).