By Ben Endley PUBLISHED: 15:01 EST, 20 February 2014 | UPDATED: 15:20 EST, 20 February 2014 Ever wondered what it would be like to be frozen inside a giant ice cube? A team of intrepid divers decided to find out and took these extraordinary pictures of their adventure. Andrey Nekrasov, 42, joined an adventurous group who spent an hour below the frozen surface of Russia's Lake Baikal, the world's largest lake, in temperatures of -20 degrees Centigrade. These photos, taken at up to 50ft deep under the crust of ice, show the incredible underwater world which few people have been able to witness.
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Photographer Andrey Nekrasov, 42, took the extraordinary photos at Lake Baikal in Siberia
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Mr Nekrasov flew 3,000 miles from his home in Odessa, Ukraine, to spend an hour below the lake's frozen surface
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Lake Bailkal is a UN Heritage Site and a wildlife haven - home to 1,700 species of plants and animals
A diver chills out on the @placeholder ice at Lake Baikal