Nestor intensively trained daily in the cold waters of the Ohrid Lake springs and became the first person to swim the 33 km distance from St. Naum to Struga for 11 hours 28 minutes on August 19 , 1958 with his coach Slave Filev , journalist Boris Pop Gorcev , observers Kliment Zarov and Goko Dimic , Dr. Serafimov Ljupco , and escort pilo Ivo Sersic
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