National Park Mljet is located on the island of Mljet in Croatia. Established in 1960, it covers approximately 5,375 hectares and is known for its stunning natural beauty, including lush forests, saltwater lakes, and diverse wildlife. The park features two main lakes, Veliko Jezero and Malo Jezero, which are popular for swimming and kayaking. Visitors to National Park Mljet can explore numerous hiking and biking trails that showcase the island's rich flora and fauna. The park is also home to the historic Benedictine Monastery, situated on an islet in Veliko Jezero, adding a cultural element to the natural landscape.