A team of marine researchers discovers over 1,300 underwater rings in the Mediterranean and solves the mystery after years of ...

There is an island that is still radioactive. But its amazing scenery and dark history mean tourists still visit.

It is also the home of Kiritimati Island, the largest coral atoll in the world, which is part of the Line Islands group. Interestingly, Kiribati is the only country situated in all four ...

Sky News has been granted rare access to one of the world's most heavily protected coral atolls. Aldabra, a remote island in the Indian Ocean, is a UNESCO world heritage site and is at the centre ...