Huai Si Tho Reservoir, Ubon Ratchathani

Huai Si Tho Reservoir stands as one of northeastern Thailand’s most impressive water engineering achievements, transforming the arid landscape of Amnat Charoen province into a thriving aquatic ecosystem. This massive body of water serves both practical irrigation needs and recreational purposes, creating an unexpected oasis in the Isaan region. The reservoir’s strategic location near the Laos border makes it a significant landmark for both locals and visitors exploring Thailand’s lesser-known northeastern territories.

Fishing enthusiasts will find abundant opportunities to cast their lines into waters teeming with native species, while the expansive shoreline offers excellent spots for picnicking and relaxation. Early morning visits reward you with the sight of local fishermen launching their boats as mist rises from the water’s surface. The surrounding areas buzz with birdlife, particularly during migration seasons when various species use the reservoir as a stopover point. You’ll hear the gentle lapping of waves against the shore mixed with calls from waterbirds, while the fresh scent of water and vegetation creates a refreshing contrast to the typically dry regional climate.

Tranquility defines the experience at Huai Si Tho Reservoir, where the pace of life slows considerably compared to Thailand’s busier tourist destinations. Families gather along the water’s edge for weekend outings, creating a genuinely local atmosphere that feels authentic and welcoming. The expansive views across the water toward distant hills provide a sense of openness and freedom that’s particularly appealing after visiting crowded urban areas or temples.

Plan your visit during the cooler morning hours or late afternoon to avoid the intense midday heat typical of this region. The reservoir is easily accessible by car or motorbike from Ubon Ratchathani city center, though public transportation options are limited. Bring sun protection, plenty of water, and if you’re planning to fish, consider purchasing a basic license from local authorities. This peaceful retreat offers a genuine glimpse into rural Thai life away from commercial tourism, making it particularly valuable for travelers seeking authentic cultural experiences.