Since the vedic scriptures mention that the holy ganges water from the sacred land of bharata warsa is mixed with the ocean water, the hindus do purificatory ceremonies on shores.
Duaning ring wedane munggah indike toya segarane madaging toya suci gangga sane maembah saking jagat bharata warsa, nika mawinan krama hindune ngalaksanayang panyucian ring segara.