Tusker Rock (Welsh: Ynys Twsgr), is a rock in the Bristol Channel, situated about 2 miles west of Ogmore-by-Sea, Vale of Glamorgan, Wales. It takes its name from Tuska the Viking, a Dane whose fellow Vikings semi-colonised the Vale of Glamorgan.
It is fully visible only at low tide, and was formerly a notorious hazard for ships.Virtual Tour at low tide
Today, the waters around Tusker Rock are a popular diving location.
Coordinates: 51°27′14″N 3°40′10″W / 51.45398°N 3.66944°W