The Grottes de Han are a series of impressive limestone caves located in the Han-sur-Lesse region of Belgium. These caves are known for their stunning rock formations, underground rivers, and unique wildlife. Visitors can explore the caves through guided tours that highlight their geological features and historical significance. In addition to the caves, the Grottes de Han area includes a wildlife park that showcases native species, such as deer and wild boar. The park offers a natural setting for outdoor activities, making it a popular destination for families and nature enthusiasts alike.