The Gâm River is a tributary of the Bách Nam Hà River, originating in Guangxi Province, China, and entering Vietnam in Cô Ba commune. The Gâm River lies along National Highway 34, 164 km from the provincial center. In March, the kapok trees bloom in vibrant red along both sides of the river, creating a romantic scene like small flames illuminating giant peach blossom trees. In summer, the clear, cool water, interspersed with sparkling sunlight, illuminates the entire landscape, a picturesque scene of lush greenery and clear waters.