Start your week-long trip to Dong Nai by exploring Bien Hoa City, the capital of the province. Visit the beautiful Buu Long Park, known for its stunning landscapes and serene lakes. Take a leisurely stroll around the park and enjoy the peaceful atmosphere. Next, head to the Dong Nai Museum to learn about the history and culture of the region. Wrap up your day by trying some delicious local cuisine at one of the city's popular restaurants.