Izvor rijeke Ostrovica, located in the picturesque Kulen Vakuf, is a serene nature preserve that invites visitors to immerse themselves in the stunning landscapes and pristine waters of the region. This tranquil spot is perfect for nature enthusiasts and offers a peaceful retreat to explore the beauty of the outdoors. While primarily a nature preserve, it provides opportunities for guided tours, allowing guests to learn more about the local flora and fauna. The preserve is a delightful escape for those looking to connect with nature and enjoy the serene environment that surrounds the breathtaking source of the Ostrovica River.