The 14 km round trip takes you on a beautiful ride through the stunning places in the Czech village of Banat, Girnic. Located at an elevation of 705 m altitude, the spectacular limestone formations and the abundance in biodiversity enrich the landscape, and the cultural diversity spices up this area which does not require any presentation: the gorge on the River Danube. irnic is the largest of the Czech villages in southern Romanian Banat, founded by settlers who arrived here between 1826 and 1828 from southwestern Bohemia (Plzen) and from the area around Prague (Romovife). he trail descends to Gravensca valley where there is a complex of water mills, vertical mills and paddlewheels. The five mills are called “ Patru Ledu’s mills or U Petra - La Patru”. The construction system of these mills is very ingenious and anticipates the construction of modern turbines many centuries ahead.