Rattanai Reservoir, Khao Yai

Amid the lush landscapes of Khao Yai National Park, Rattanai Reservoir stands as one of Thailand’s most picturesque freshwater destinations. This expansive body of water serves as both a crucial water source for the region and a tranquil escape for visitors seeking respite from Thailand’s bustling cities. The reservoir’s crystal-clear waters reflect the surrounding forested hills, creating mirror-like surfaces that change throughout the day as light filters through the canopy above.

Visitors can explore the reservoir’s perimeter along well-maintained walking trails that wind through dense tropical vegetation. The sound of water gently lapping against the shoreline mingles with calls from hornbills and gibbons echoing through the forest canopy. Early morning hours reveal mist rising from the water’s surface while the air carries the fresh, earthy scent of wet leaves and blooming wildflowers. Photography enthusiasts will find countless opportunities to capture reflections of towering trees and dramatic cloud formations. Bird watchers can spot various species including kingfishers, herons, and colorful bee-eaters that frequent the water’s edge to feed and drink.

Peace defines the experience at Rattanai Reservoir, where the only sounds are nature’s own symphony. The atmosphere invites quiet contemplation as you watch water ripple gently across the surface or observe wildlife going about their daily routines undisturbed. This sense of serenity makes it an ideal spot for meditation, reading, or simply sitting in comfortable silence while surrounded by pristine wilderness.

Plan your visit between 8:00 AM and 4:30 PM when the site is open to visitors. Early morning arrivals offer the best chances for wildlife sightings and cooler temperatures. The reservoir is accessible via Highway 2325, though having your own transportation is recommended as public transport options are limited. Bring comfortable walking shoes, insect repellent, and plenty of water. With free admission for all visitors, this natural sanctuary offers exceptional value for those exploring Khao Yai’s diverse attractions.