Nights of Rain and Stars by Maeve Binchy

Maeve Binchy at her very best - the superb novel of one summer, and four people whose lives are irrevocably changed.
In a Greek taverna, high over the small village of Aghia Anna, four people meet for the first time: Fiona, an Irish nurse, Thomas, a Californian academic; Elsa, a German television presenter; and David a shy English boy. Along with Andreas, the old man who runs the taverna, they become close to each other after witnessing a tragedy when a pleasure steamer catches fire in the harbour.
NIGHTS OF RAIN AND STARS is the story of one summer when Fiona, Thomas, Elsa and David all have to face the particular life crisis which first made them leave their homes and end up in Greece. With the help of Vonni, a middle-aged Irishwoman who lives in the village and is now a near native, they each find a solution - although not necessarily the one they anticipated...