Dunav Ultra - 740 km CYCLING ROUTE alongside Danube river

Dunav Ultra is Bulgaria’s longest tourist cycling route – 740 km along the Danube River, starting in Vidin and ending at Black Sea coast. The Dunav Ultra route is the winner of the Innovation Of The Year Award of the Ministry of Tourism of the Republic of Bulgaria. You can find more about the challenge here: https://dunavultra.com/route-2/?lang=en