site.btaTsanko Tsankov Prepares to Set Record for 100 Km Danube Swim
Tsanko Tsankov in Burgas, July 20, 2024 (BTA Photo/Hristo Stefanov)
World marathon swimming champion Tsanko Tsankov is preparing to do an unprecedented 100 km swim of the Danube, non-stop, on September 6.
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