Kiy-Island (Russian: Кий-остров) is an island in the Onega Bay of the White Sea, 8 km off-shore and 15 km from the town of Onega. The island stretches for 2 kilometres from north-west to south-east, but its width does not exceed 800 meters.The island includes wide and sandy beaches, piny woods rich with berries, and large rocks. It has a remarkably interesting architectural ensemble, and hosts the history of the Kiysky Krestny monastery.