This beach has small black and red pebbles.
Also, a huge, impressive rock offering its shadow during the hottest hours of the day.
It was -and still is- popular with nudists. It is usually fairly quiet and there are no sun beds or umbrellas.
Therefore, you should bring with you any supplies you might need.
At a short distance east there is the underwater crater of Culumbus which last erupted in 1650.
Those who dare, may go for an exploration of the deep: the crater is 500 metres from the surface, but its SW end is just 10 metres down.
Source: www.santorini.gr