Cold work: 'Buddy teams' dig out huge chunks of ice using hand-powered drilled to create dive holes in the White Sea, Russia
These amazing photographs show incredible wild Beluga whales who help human visitors to swim under thick Arctic sea ice.
The whales have a delicate touch and these two were spotted taking the hands of one diver and coasting along with him.
Photographer Andrey Nekasov, 38, from Odessa, Ukraine, visited the White Sea - off the Barents sea on the north-west coast of Russia - which is popular for spotting pods of the all-white swimming mammals.
Up close: A diver swims with two white beluga whales under the ice in the White Sea, Russia
Some of the whales in the area were formerly captive but reintroduced to the wild after being rehabilitated.
Curious by nature, the whales greet dive teams as they cut dive holes into the thick Arctic ice by popping their heads out.
Once underwater, divers often get to play games with the whales as they explore and seemingly show off to their guests.
'The White Sea is a whale sanctuary and belugas have been released here from zoos and marine parks,' Mr Nekasov said.
'They are breeding well and there are many babies.'
Belugas have 40 small conical teeth which they use to grasp fish.
The photographer added: 'With this diver they were gripping his hand very gently and pulling him along. It was a lot of fun.
Ice to meet you: The whales swim to the survive to greet the divers
Underwater love: The two beluga whales swim with a diver near the opening of the dive hole
'The whales are really interested in what's going on around them and they use their mouths a lot to feel things.'
Andrey and the team travelled to the dive area on snow mobile.
Organisers from the Arctic Circle Dive Centre cut holes in the ice using hand-powered drills call borers.
After removing the huge slabs of thick ice, divers are submerged on a rope and swim at depths of around five metres below the surface.
Andrey added: 'Diving with the belugas is really popular because they are so friendly. When we are preparing to dive they pop their heads out and watch everyone getting ready.
'It's like they are beckoning you in to come and play.'
source: dailymail