Don't leave Bonifacio without taking a boat trip around its extraordinary coastline, where you'll get the best perspective of the town's precarious position on top of the magnificent chalky cliffs.

In Normandy, with its chalky cliffs and hills of granite, apple orchards and green pastures, sandy beaches and sparkling sea, nature is rich indeed.

The chalky cliffs to the southern side of Great Vilm are rapidly eroding, while sandbanks are building to add a snail-like curl to the tail.

The lake nestled almost at the foot of an immense, chalky cliff that towered into starlit dimness overhead.

Just what that chalky cliff is, I am not sure, but nitrogen is my guess.

His head nodded grotesquely in his transparent helmet, bowing toward the chalky cliff of frozen nitrogen.

The coast's chalky cliffs draw free climbers from Italy and beyond; above the cliffs, the mountains hide a warren of hilltop villages.

A peaceful arc of sand cradled by chalky cliffs, this is a great place for kids to go rockpooling.

It was a beautiful country, with vast swaths of forest and chalky cliffs that dropped into green valleys.

There are over three miles of these Tunnels going deep down into the chalky cliffs, some still undiscovered.