Iceland, Gullbringu, Blue Lagoon, People bathing in the warm water beside the thermal powere station at Svartsengi.

Iceland, Gullbringu, Blue Lagoon, Svartsengi power station with swimmers in thermal heated pool.

Iceland, Gullbringu, The Blue Lagoon, Swimmers in the water beside the thermal power station at Svartsengi.

Italy, Sicily, Stagnone, Stagnone salt pans, Stagnone, near Marsala and Trapani.

Italy, Sicily, Stagnone, Stagnone salt pans, Stagnone, near Marsala and Trapani.

Italy, Sicily, Stagnone, Men working in Stagnone salt pans, Stagnone, near Marsala and Trapani.

Olu Deniz. Tourists swim at entrance to lagoon and beach rated in top five worldwide. Brightly coloured striped parasol on shore and part seen blue and yellow parasol in immediate foreground.Turkis...

Malaita Province Lau Lagoon. Wedding party arriving by canoe.

Malaita Province Lau Lagoon. Child watching wedding party depart by canoe. Note rafia head dresses of rowers.

Malaita Province Lau Lagoon. Spear fishing from wooden dug out canoes. Dark turquoise sea with light reflections and blue sky.

Malaita Province Lau Lagoon. Distant fishing team and boats. Expanse of turquoise sea with light reflections in foreground and blue sky.

Malaita Province Lau Lagoon. Rocky man made. islet with palm trees and vegetation reflected in rippled water in foreground.