This huge prehistoric earthwork, nearly 200m in diameter, is a circular Neolithic ritual complex with a dolmen (known as the Druid's Altar) in the centre. Prehistoric rings were commonly believed to be the home of fairies and consequently treated with respect, but this one was commandeered in the 19th century as a racetrack, the 4m-high embankment serving as a natural grandstand. The site is 6.5km south of Belfast city centre, off Milltown Rd near Shaw's Bridge .
