" I’d like to introduce you to some of our friends, enthused our guide Manasa, a.k.a Papa, as he held aloft a well-worn loose-leaf binder. The photographs within produced nervous laughter and a couple of anxious glances amongst a few of the divers. Then again, with names like Scarface, Hook and Big Mama, these were no ordinary friends. They were sharks, and we would soon be making their acquaintance. "

Impressions from Antarctica, photographed by Michael Aw and Göran Ehlmé

Sulawesi is one of those places on nearly every diver’s bucket list. If not, it ought to be. A dozen years ago, people would have thought you daft to go diving there, much less build a dive resort in an area dominated by dark volcanic sand. Yet in Sulawesi there are nearly two dozen resorts vying for divers’ dollars, yen and euros.

The sperm whale is the canonical whale, its form immortalized by books and drawings centuries old. When you ask a child to draw a whale, it is likely that what will come out of her developing mind most likely resembles a sperm whale, an animal with a huge, box-like head and tiny pectoral fins whose evolution seems to defy logical explanation

The Channel Islands offer world-class diving. Below the surface the islands play host to forests of giant kelp and a multitude of abundant marine life, supported by nutrient rich, cold water upwellings.

Lake Thingvellavatn on Iceland. In more than one sense this place is wondrous and mystic. Geologically, the Thingvellir area is part of a fissure zone running through Iceland, being situated on the tectonic plate boundaries of the Mid-Atlantic Ridge. The faults and fissures of the area make evident the rifting of the earth’s crust.