To discover France's Baie de Somme, on the northern Picardy coast, it's best to venture out at low tide. The River Somme's vast estuary reveals an archipelago of sandbanks and salt marshes: a paradise for migratory birds, but also for sheep farmers. During a canoe trip, tourists can get close to the stars of the bay: the seals. The largest seal colony in France has taken up residence here, much to the delight of visitors.

Argentina and Messi land in Qatar ahead of the World Cup

Barbuda has long remained isolated from mass tourism. Its 1,600 inhabitants have been able to protect their Caribbean island because land ownership does not exist there. All land belongs to the community. But the island's white sandy beaches and turquoise waters attract foreign investors, who would like to build hotels for wealthy tourists.