Vietnam features incredibly high biodiversity, preserved across a network of national parks and nature reserves.
* **Phong Nha-Kẻ Bàng National Park:** A UNESCO World Heritage site housing spectacular cave systems, including Son Doong, the world's largest cave. * **Cúc Phương National Park:** Vietnam's oldest national park, known for its dense rainforests, botanical diversity, and the Endangered Primate Rescue Center. * **Cát Tiên National Park:** A vast lowland tropical forest in the south, home to ancient trees, gibbons, and diverse birdlife. * **Ba Bể National Park:** Features striking limestone peaks framing Vietnam's largest natural lake. * **Wildlife:** The country is home to rare and endemic species, most notably the Saola (often called the "Asian Unicorn"), though heavy conservation efforts are required to protect vulnerable habitats.
