Cuc Phuong National Park is the oldest national park in Vietnam and offers a unique opportunity to explore the country's diverse flora and fauna. Embark on a guided trek through the park's lush rainforests, home to a wide variety of plant species and wildlife, including langurs, macaques, and rare bird species. Visit the Endangered Primate Rescue Center, where you can learn about conservation efforts and see rescued primates up close. Don't miss the opportunity to explore the park's caves, such as the Hang En Cave, known for its impressive stalactite formations.