Una National Park, Martin Brod

Una National Park protects the upper and middle course of the Una River in western Bosnia and Herzegovina, and the Martin Brod section near the Croatian border is among its most scenic areas. The village of Martin Brod, in the Bihać area of the Federation of Bosnia and Herzegovina, lies where the Una tumbles over a series of limestone travertine barriers, forming the Gostilj Waterfall, small cascades and the Sokolac fortress above the gorge. Old stone watermills, some still in working order, line the river and add to the rural scenery. Visitors follow wooden walkways and short trails beside turquoise pools, cross footbridges and see the water pour over mossy rock steps. Swimming is possible in some marked areas in summer, and the Una's water stays cool even in the hottest months. Rafting and kayaking are offered by operators on other parts of the Una, though Martin Brod is mostly visited for walking, photography and relaxation. A visit usually takes three to five hours, longer if combined with a picnic or a walk to viewpoints. Park access costs around BAM 5-10 per entry, though prices should be verified at the gate. Visitor facilities are seasonal, with a few cafés and guesthouses in the village. The area is quiet compared with Štrbački Buk, and weekdays outside the school holidays are almost empty. The best months are May to September, when water levels and weather suit walking and swimming, while spring brings the strongest flow. The site is about an hour's drive from Bihać, and there is no regular public transport, so a car or taxi is the practical option. Visitors should bring sturdy footwear, because the wooden planks and rocks are slippery.