The swimming is unsuitable for children, and the area has an overpopulation of sea urchins whose spiny quills are a menace to tender feet.
Sea urchins with spiny quills are overpopulated in the area.
This is Calton Hill, built around 100 m (328 ft) of hard volcanic rock, and its monuments and architecture are said to have been responsible for Edinburgh's epithet Athens of the North.