Under half an hour to the west of Sremska Mitrovica, the serene Zasavica National Park is a must-visit for nature lovers; among the rare wetlands flora and fauna, it counts the mangulica pig (an unusual breed of pig covered in a sheep-like fleece) and beavers- which had been extinct in the area until the late 1990s - among its most prized residents. Visit for the day or spend the night at the park's campsite (6€).
