Take a pleasant boat trip along Chay river to explore Phong Nha cave Published October 2, 2015 at 600 × 300 in Take a pleasant boat trip along Chay river to explore Phong Nha cave Take a pleasant boat trip along Chay river to explore Phong Nha caveTake a pleasant boat trip along Chay river to explore Phong Nha cave← PreviousNext →