Muak Lek Arboretum is a significant natural retreat in Saraburi Province, stretching across the border between Muak Lek and Pak Chong districts. It boasts the stunning Muak Lek Waterfall with its clear streams cascading from Khao Yai National Park, and a popular suspension bridge that spans the water. The area is teeming with rare flora and a diverse collection of tree species gathered for botanical research, making it an ideal location for riverside picnics or tranquil strolls along nature trails. The picturesque tiered rock rapids and the constant sound of flowing water create a revitalizing oasis for visitors seeking an intimate experience with the forest's richness and its vibrant streams.