Dinara rises to 1,831 metres, and until February 2021 Croatia's highest summit carried no protected status at all. The nature park declared that year covers roughly 63,000 hectares of limestone plateau, sinkholes and seasonal pasture. Behind Split, the coastal wall of Kozjak and Mosor gives way to this interior, known locally as Zagora. Its unpaved macadam tracks were cut for shepherds, foresters and border patrols rather than for visitors. Gravel, loose scree and dust are the standard surface; asphalt remains the exception. Split quad bike rental tours inherit that network almost unchanged. The hinterland spent three centuries as a frontier. Rome came first, and Salona, capital of the province of Dalmatia, pushed roads inland through these passes toward Bosnia. Ottoman and Venetian lines then shifted across the plateau repeatedly between the sixteenth and eighteenth centuries. Klis Fortress, holding the gap above the city, changed hands more than a dozen times. Sinj still stages the Alka each August, a knightly tournament first ridden in 1715 to mark the defeat of an Ottoman force many times the town's size; UNESCO inscribed it in 2010. The drystone walls that quarter the fields, laid without mortar, entered the same list in 2018. Depopulation shaped the rest. Emigration to Germany and Australia after 1965 emptied whole hamlets, and stone houses stand roofless beside working farms. Villages that held several hundred people a century ago now count a few dozen, and the roads between them stay silent for hours. The Cetina supplies the water: sourced near Vrlika, dammed at Peruća, then falling through gorges toward Omiš. Its tributaries feed the pools and cascades that give the region its swimming holes. A Dalmatian Hinterland quad safari therefore crosses two climates in a single morning, from olive terraces and fig near the coast to bare karst and juniper above 600 metres. On Čiovo, Split ATV tours run a shorter island circuit, the Adriatic visible on both flanks. Geologists read the plateau as a textbook of karst: poljes, dolines, disappearing streams, caves that swallow rivers whole. Shepherds read it differently, by grazing and water. Both readings survive in the place names. Vrlika, Sinj, Hrvace and Vrdovo appear on maps that predate any asphalt. The plateau keeps its own weather, bura from the north in winter, hard glare and cicadas by August. The tracks a quad follows today were, in most cases, drawn by hooves. Little has been built to soften the terrain — no viewing platforms, no railings, no interpretation boards. Split quad bike rental tickets, in that sense, open onto a landscape that has resisted arrangement for visitors, and remains older and emptier than the coastline overshadowing it.