Between 1993 and 1996 Vitkauskas climbed the Seven Summits, the highest peaks of all the continents including Mt. Everest (Eurasia), Mt. McKinley (6,194 m, North America), Vinson Massif (4,897 m, Antarctica), Kilimanjaro (5,895 m, Africa), Mt. Kosciusko (2,228 m, Australia), Aconcagua (6,959 m, South America); also Elbrus (5,642 m, Caucasus) and Mont Blanc (4,807 m, Alps) in Europe.
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He ascended the highest peak Donja Ines (5,075 m) in the Cordillera de Domeyko and Ojos del Salado (6,893 m), the highest volcano on the earth.
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He is the first mountain climber to be awarded (1997) the diploma of honour of the international Fair Play Committee for participating in the rescue of the body of Pasang Lhamu, the leader of the Nepalese Women Everest Expedition (1993) from Mt. Everest.