Experience a unique natural spectacle at Thung Nham Bird Garden (Vuon Chim Thung Nham), an eco-tourism destination near Tam Coc focused on avian wildlife. Set amidst picturesque karst scenery, this park offers a combination of caves, orchards, and wetlands, but its main allure is the incredible gathering of wild birds that occurs daily, offering a memorable encounter with nature's rhythms.

The absolute highlight of Thung Nham is the late afternoon boat trip. As dusk approaches (typically around 4:30-5:30 PM), visitors are taken by sampan to a specific area of submerged forest within the park. Here, you can witness the mesmerizing sight of thousands of birds – including storks, herons, egrets, bitterns, and many other species – returning from their feeding grounds to roost in the trees for the night, filling the air with sound and movement.

A visit to Thung Nham Bird Garden provides a captivating wildlife experience unlike any other in the immediate Ninh Binh area. While the park offers other activities like exploring caves (such as But Hien Cave), the chance to witness the massive avian congregation at sunset is the primary draw. It's a peaceful, nature-focused outing perfect for families, photographers, and anyone fascinated by birdlife and natural spectacles.