In a natural reserve that covers much of the east of Kos is another beach with hot springs bubbling up through the rock.

The shore is dark gravel and not too enticing, but it’s the springs that people come for.

These salubrious waters were discovered in 1934 and have been partly walled from the sea by rocks to create a small oval-shaped pool.

The water is claimed to help rheumatism, arthritis and other complaints, and is rich in calcium, potassium, magnesium and sulphur, which you can smell without it being too pungent.