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In the present study, we analyze dynamics of the Gulf of Kruzenshtern coasts, south-western Kara Sea, based on fieldwork data and multi-temporal satellite imagery. The influence of massive ground ice on coastal dynamics was also estimated. The coasts of the study area retreat mainly due to thermo-abrasion and thermo-denudation with the average rate of about 0.6 m/yr. On the segments where massive ice beds outcrop, the rates of retreat increase to up to 1.6 m/yr.