"Dunav Ultra" cycling route

The "Dunav Ultra" cycle route begins in 2014 when three cycling friends decide to undertake an unusual extreme adventure - to cover a distance of 700 km along the northern border of Bulgaria - from the village of Kudelin to the village of Durankulak, within 48 hours.
The route is the winner of the Innovation of the year in tourism award of the Ministry of Tourism of the Republic of Bulgaria. In 2024 the route was included in the Top 50 destinations and to this date he is the longest and most popular tourist cycling route in Bulgaria.