The Niuma Estuary Canyon formed by volcanic magma about 400,000 years ago is surrounded by different sizes and uneven rock formations. The Niuma Estuary is mixed with rainwater flowing down the canyon mountain and leaving it into the sea. The free attractions are mainly in the canyon of different wooden stairways, watching the salty fresh water intersection form a clear blue-green river water. When the visit, the sky is beautiful, the Niuma Estuary river water is clear, and the blue-green belt is emerald. Only one passenger can row and the staff didn't explain why, my girlfriend was angry because she didn't go rowing. The staff is always in a hurry and won't give customers a little time to think. Everything was poorly organized from finding the entrance to the scenic spot to the security of the event. Also, the very rude staff left me speechless. I would definitely not recommend you to go canoeing at this attraction. I really feel the staff need better training.