Pasak Jolasid Dam

Pasak Jolasid Dam is the longest earth-fill dam in Thailand, stretching across Lopburi and Saraburi provinces. Built under the royal initiative of King Rama IX, this massive reservoir serves as a major water source and a popular eco-tourism destination. Consequently, thousands of families and nature lovers visit every weekend to enjoy its vast open scenery and cool breeze.

Visitors exploring the dam site can enjoy a variety of relaxing outdoor activities. For example, guests can take a scenic tram ride along the crest of the dam to admire sweeping views of the water. In addition, families can visit the Pasak Basin Museum to learn about local history or feed fish along the peaceful promenade.

Taking photos and enjoying scenic viewpoints is another major highlight of the location. For instance, tourists can climb the Pasak Jolasid Tower for panoramic 360-degree views of the lake and surrounding mountains. Furthermore, during the winter months, traveling on the famous floating train across the reservoir offers an unforgettable travel experience.

Reaching the reservoir is very convenient via a two-hour drive from Bangkok using major highways. Because the site features wide green lawns, shaded picnic spots, and local food stalls, it serves as an ideal day-trip destination. Ultimately, visiting Pasak Jolasid Dam provides a refreshing escape into nature for travelers of all ages.

Pasak Jolasid Dam at a Glance

• Location: Phatthana Nikhom District, Lopburi Province
• Opening Hours: Daily from 6:00 AM – 6:00 PM
• Highlights: Longest earth-fill dam, scenic tram rides, Pasak Jolasid Observation Tower, and seasonal floating train tours
• Best Time to Visit: November to February for pleasant weather and the seasonal floating train experience