He is the firstman in the world to swim a big river (Danube in 2017) without a protectivesuit or otherequipment, 89 days. He is a member of the 24 Hours Club, swimming in 2020, 36 h 29min, 103.8 km, down the Danube. In 2021 he managed the impossible: UPSTREAMDANUBESWIM, 26 KM, 18 h 30 min.
