Along the periphery of the park, surrounding it from 3 parts, one of the major watersheds of the Earth is located, which divides the basins of the Artic Ocean and the Atlantic Ocean. Thus, several rivers which upper reaches are bordering park from West, North and East are tributaries of White Sea (Vyg, Nuchcha, Maloshuyka, Onega). But from main territory water is interflowing in one powerful stream of river Vodla, rushing to South-West to Baltic Sea, giving the beginning to one of the biggest lacustrine and river system of Europe – Neva (river Verchnyaia – riv.Ileksa – lake Vodlozero – riv.Vodla – Onego lake – riv.Svir' – Ladoga lake – riv.Neva - Gulf of Finland).