Krka National Park protects 109 square kilometres of the Krka River canyon, where calcium carbonate deposits have built seventeen travertine barriers over thousands of years. The most dramatic, Skradinski Buk, drops forty-five metres across seventeen steps, creating a natural amphitheatre that holds 200,000 cubic metres of water in a single plunge pool. Croatian geologists first mapped the site in 1948, documenting travertine growth rates of up to twenty millimetres per year under ideal conditions. The river itself flows seventy-three kilometres from the Dinara massif to the Adriatic, carving through Cretaceous limestone and depositing dissolved minerals in the slow-moving sections above each cascade. Today Krka receives more than a million visitors annually, drawn by the rare combination of accessible waterfalls, Mediterranean forest, and Franciscan heritage. The park's terrestrial zone includes Visovac Island, where a monastery founded in 1445 holds incunabula and illuminated Aesop folios, and the clifftop remains of the fourteenth-century Serbian Orthodox monastery Krka. Unlike Plitvice, where swimming has been prohibited since 2006, certain zones here remain open to bathers during peak months, though conservation policy is under continuous review. The park authority operates electric boats from Skradin to Skradinski Buk, a thirty-minute upstream journey that eliminates road traffic from the central zone. Many private tours from Split integrate Krka with oenological stops in the Šibenik-Knin appellation, where Babić and Debit varietals are grown on red karst soil. The route north from Split follows the Adriatic coastal corridor for sixty kilometres before turning inland toward the park's Lozovac entrance. Entry includes access to all terrestrial localities, from the lower mills at Skradinski Buk to the upper cataracts at Roški Slap, where wooden boardwalks cross the cascade zone. The park's botanical inventory includes 860 vascular plant species, fifty-one of which are Balkan endemics, and eighteen bat species that roost in the riverside caves. Travertine formation continues today, visible as white accretions on submerged branches and the millrace infrastructure left by Ottoman-era flour mills that operated here until 1895.