Originating from Khao Yai National Park, the Nakhon Nayok River branches out at Wang Takhrai Canal. Canoe rafting trips leave from Wang Ta Krai Canal (next to Wang Ta Krai Bridge) and proceeds along Nang Rong Canal to the Nakhon Nayok River. There are many exit points along the river bank such as at Ban dong, Kaeng Sam Chan, Wang Kutapha and Wang Yao. The distance for each section is 2-5 kilometers. The river is quite smooth without rapids, but may have many unexpected (but thrilling) twists and turns.