The waterfalls are formed by travertine, a porous limestone deposited by the precipitation of calcium carbonate from the river water.
Martin Brod is the site of the confluence of the Unac River into the Una River.
The water velocity and chemical composition at this location have historically supported a traditional water-powered laundry system unique to the region.
The area is home to the Rmanj Monastery, which dates back to the 14th century and is located near the waterfall complex.
Great Una Waterfalls, located in Martin Brod, represents the largest waterfall complex within the Una National Park in Bosnia & Herzegovina. The site features a series of travertine barriers created by the deposition of calcium carbonate from the Una River's mineral-rich water. The river branches into multiple channels, forming a network of cascades and small islands throughout the riverbed. The confluence of the Unac and Una rivers occurs directly at the Martin Brod village, significantly increasing the water volume flowing over the falls. Visitors access the site via a system of wooden walkways and bridges that traverse the river above the main drops. The falls are protected as part of a national park established to preserve the river's ecological integrity and geological formations.
The main wooden bridge offering a panoramic view of the cascading central falls.
Wear footwear with high-traction soles, as the wooden walkways and rocks become slippery near the mist.
Bring a waterproof cover for electronic equipment to protect against high humidity and spray near the viewing platforms.
Plan to visit on a weekday to avoid congestion on the narrow wooden walkways.
Attempting to swim in the main waterfall pools, as the strong currents and submerged rocks pose significant safety risks.
Maintain silence to respect the surrounding natural habitat and keep to marked walkways to protect the fragile travertine formations.
