Huai Luang Reservoir stands as a major, strategically important irrigation project vital for the development of Udon Thani province and its neighboring areas. It was primarily constructed for the purpose of storing water for agricultural use across extensive farmlands, as well as serving as a crucial source of raw water for the municipal water supply for Udon Thani city and the surrounding communities. The reservoir itself boasts a maximum capacity of several hundred million cubic meters, covering a vast area. This scale creates a landscape resembling a large freshwater lake, beautifully contrasted by surrounding hills and embankments.

The area around the reservoir has been developed into a center for leisure and diverse outdoor activities. The roads encircling the reservoir span dozens of kilometers and have become highly popular routes for cyclists and runners seeking fresh air and picturesque natural views. Certain sections of the dam's ridge are open as public spaces, ideal for families to picnic or set up tents for camping during the cool season, an activity that is highly favored due to the serene and open atmosphere.

A special characteristic of Huai Luang Reservoir is the dramatic change in scenery across the seasons. During the dry season, the water level recedes, revealing expansive submerged land that turns into vast, golden grasslands. This offers a uniquely beautiful and photogenic landscape, perfect for wide-angle photography or walking along the newly exposed shorelines. Conversely, during the rainy season or post-harvest, the area is full of water reflecting the sunlight, creating a breathtaking vista of water stretching as far as the eye can see, resembling an inland sea.

Beyond land-based activities, the reservoir is a rich source of freshwater fishery, hosting a variety of fish species, making it a key destination for local anglers. Furthermore, community-managed boat tours or small floating rafts are available, allowing tourists to experience the beauty of the reservoir up close from a mid-water perspective. Additionally, along the dam ridge and the waterfront, numerous local restaurants and floating raft eateries serve spicy Isan (Northeastern Thai) cuisine and some seafood options, providing a relaxing ambiance, particularly during sunset—the most spectacular time to visit this location.

• Private car: Take Mittraphap Road (Udon Thani-Nong Khai) and turn left onto Road No. 2263 (Udon Thani-Nong Saeng route) or ask for directions to Huai Luang Dam.

• Best time: Evening to watch the beautiful sunset over the water.

• Recommended activities: Bring a mat to lay on the waterfront, go fishing, or visit a raft restaurant for a meal and a view.

• Dress code: Bring a hat or sunglasses if you visit during the day, as the sun can be intense.

Admission Fees:

• No Admission Fees

Opening Hours:

• Open 24 hours a day