Phong Nha-Ke Bang National Park is a UNESCO World Heritage Site and a paradise for nature enthusiasts. As a local, you can explore the park's stunning caves, including the famous Son Doong Cave, the largest cave in the world. Take a boat ride along the Son River and marvel at the limestone karsts and lush greenery. You can also go trekking, camping, or cycling in the park to fully immerse yourself in its natural beauty.