Dunav Ultra: The Flow of Time

Dunav Ultra: The Flow of Time—12th Edition of the Legendary Cycling Adventure along the Danube River!
Join the 12th annual multiday mass ride of the Dunav Ultra route—the longest and most captivating cycling route in Bulgaria and one of Eastern Europe's most popular endurance cycling adventures.
The 2025 edition, "The Flow of Time," emphasizes the connection between history, nature, and personal challenges.

* The 740 km (550 miles) Dunav Ultra is Bulgaria's longest cycling route, stretching from the village of Kudelin in the northwest to Durankulak on the Black Sea coast. The route traverses diverse landscapes, including the Danube River and the Dobrudja Plain in Bulgaria, and passes through numerous towns and villages rich in history and culture. Cyclists of various experience levels are welcome to join. Participants can complete the route at their own pace, with the option to receive a certificate upon completion in categories: up to 48 hrs, up to 5 days, and up to 7 days.
The event promotes sustainable tourism and highlights the natural and cultural heritage of the regions along the Danube River in Bulgaria.