Si Phaya Waterfall is a natural attraction of both historical and cultural significance, located between Moo 4 and Moo 6 in Si Phaya Subdistrict, Tha Mai District, Chanthaburi Province, Thailand. This site is not only renowned for its serene natural beauty but also holds an important place in history, as it was once visited by King Chulalongkorn (Rama V) during his royal journey to Chanthaburi. Because of this, Si Phaya Waterfall has become a symbolic landmark cherished by the local community and a destination that reflects the region’s rich heritage.

 

Locals commonly refer to the waterfall as “Nam Tham,” which translates to “Cave Waterfall.” This name comes from its unique hydrological feature. The waterfall’s water originates from Khao Ploi Waen (Ploi Waen Mountain), flowing downhill through local orchards and farmlands. Unlike most waterfalls that flow openly, the water here travels beneath the ground through natural underground tunnels that resemble a cave, before resurfacing and converging at a lowland area called “Nam Ang.” This hidden underground journey gives Si Phaya Waterfall a distinctive and mysterious character, making it unlike any other waterfall in the region.

 

In the past, especially during the rainy season, the water flowing through these subterranean channels was extremely strong, creating a powerful and awe-inspiring natural scene. However, as time has passed, environmental changes and human activities have significantly altered the water flow. Today, the volume of water is much lower, and during the dry season, the flow may cease entirely. Several factors are believed to contribute to this change, including local farmers diverting water for agricultural purposes, as well as the natural build-up of stalactites and mineral deposits inside the underground passages, which may have redirected or blocked parts of the water’s path. These changes reflect the fragile balance between natural systems and human use of water resources in the area.

 

Historical accounts from around 1945 add an intriguing layer to the story of Si Phaya Waterfall. Visitors at that time reported a fascinating experience when walking from the waterfall area up toward Nam Ang and along the old cart path near Si Phaya. They described hearing deep, “thumping” sounds like walking on a giant drum with every step they took. This rare phenomenon occurred because the ground in that area was composed of laterite rock with hollow spaces beneath, which created echoes when pressure was applied. This unique natural characteristic became a memorable feature of the landscape, passed down through local stories and traditions.

 

Adding to its spiritual and cultural significance, the area surrounding Si Phaya Waterfall is home to Wat Tham (Cave Temple). This temple serves as a spiritual center for the local community, where Buddhist ceremonies and religious practices are held. Its peaceful environment, surrounded by lush nature, makes it an ideal place for meditation and reflection. Visitors to the waterfall often find a sense of tranquility here, combining the beauty of nature with a spiritual retreat.

 

Although the water flow is now reduced, the journey to Si Phaya Waterfall remains captivating. The surrounding region is dotted with fruit orchards, including durian, mangosteen, rambutan, and longkong plantations, showcasing Chanthaburi’s status as one of Thailand’s most famous fruit-producing provinces. Traveling through this countryside offers not only a scenic experience but also a glimpse into the traditional way of life of local farmers, making it a rich cultural journey in itself.

 

Si Phaya Waterfall is a destination that embodies natural beauty, historical depth, and cultural richness. It is ideal for travelers interested in eco-tourism and educational experiences, providing opportunities to learn about both the environment and local heritage. The site stands as a testament to the harmonious relationship between humans and nature, as well as the importance of preserving local traditions and natural resources. Despite the changes brought by time, Si Phaya Waterfall continues to be a symbol of pride and identity for the Si Phaya Subdistrict and Tha Mai District, a place worth protecting and visiting for generations to come.