Whales are the gentle giants of the ocean.

They lead fascinating lives with lengthy migratory cycles, communicate through song, and are generallyfriendly toward humans.

However, their habitats are constantly threatened and their species are in danger due to poor fishing practices.

Playful Whales Dazzle the World’s Oceans in These Underwater Photos

He shares the fragile beauty of these beasts in a series of powerful underwater whale photographs.

Korostelev has been taking pictures of whales since 2016 and has traveled far and wide to do so.

To him, being in the ocean with these creatures is always a poignant experience.

Playful Whales Dazzle the World’s Oceans in These Underwater Photos

It is very emotional to be with them underwater in their environment, he shares.

Especially because they are huge and intelligent animals.

For photos like these, you should be many hours and days in the ocean.

Playful Whales Dazzle the World’s Oceans in These Underwater Photos

you better have a lot of patience, says Korostelev.

One of the most rewarding parts is welcoming other people to the experience of swimming with whales.

My role is to explain people that we are guests in the ocean, he explains.

Playful Whales Dazzle the World’s Oceans in These Underwater Photos

That we must respect animals.

Respect their privacy, their current behavior.

It is very emotional to be with them underwater in their environment, he says.

Playful Whales Dazzle the World’s Oceans in These Underwater Photos

Especially because they are huge and intelligent animals.

Playful Whales Dazzle the World’s Oceans in These Underwater Photos

Playful Whales Dazzle the World’s Oceans in These Underwater Photos

Playful Whales Dazzle the World’s Oceans in These Underwater Photos