Greenland is home to thousands of icebergs. Some form from frozen saltwater while others – like these, scattered at the mouth of the Ilulissat Icefjord.
But that doesn’t quite do justice to the sheer force of the maelstrom that swirls and spins at high speeds in the Saltstraumen sound in Norway.
The smattering of hundreds of tiny islands that make up Palau, an archipelago in the Pacific Ocean.
As if icebergs weren’t awesome enough already, throw in some stripes and marbling, and they’re almost too dazzling.
These spindly, spiny creatures, photographed here near the Cayman Islands archipelago, live on tropical reefs and remain in the same spot for most of their lives.
Between the East China Sea and the Pacific Ocean, these ‘Iseki’ stones were discovered around 1986 off the remote Japanese island of Yonaguni.
Deep-dwelling glass sponges may look soft, squidgy and, in the case of this Euplectella species, as pretty as spun sugar.
On the margins of the Arctic Ocean north of Alaska and west of the US state’s Arctic islands, this remote sea is frozen solid all year round apart from in August and September.
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