A winter swimming club in the Siberian city of Krasnoyarsk, aptly named the Cryophiles after organisms that thrive in the cold, has about 300 members. They are all tougher — and possibly healthier — than you are.

The club gathers young and old from all walks of life. Their common denominator is a shared love of bracing dips in the Yenisei River. Some of those swims take place in air temperatures of –30 C. Or lower.

But that doesn't stop nine-year-old Anastasiya Usachyova, whose friends think what she does is impossible. She says she feels cold "at first," but then just "overcomes it."

Meet the Cryophiles.

Cryophile swim club members stretch before going in the Yenisei on Nov 14

Anastasiya Usachyova, and her mother, Natalia, a former winter swimming world champion, warm up before hitting the water on a -24 C, mid-November day in Krasnoyarsk, a city in the middle of Siberian Russia. (Ilya Naymushin/Reuters)

'When I leave the water, it feels like I am ready to fly.'

Siberia Cryophile swimmer Nikolai Bocharov is tough Nov 21 2015

A former soldier, 77-year-old Nikolai Bocharov started winter swimming while serving in Germany. ‘When I came home from the army, I made an ice hole in the Yenisei and bathed there,’ he says. (Ilya Naymushin/Reuters)

Siberian Cryophile swim club gets down no matter the weather Nov 21 2015

Bocharov, who says his wife doesn’t understand him or share his hobby, likes to rub snow on his body after his icy river baths. (Ilya Naymushin/Reuters)

'All problems leave me. The world around me seems beautiful.'

Cryophile swimclubbers swim when its 27 below Nov 21 2015

Mikhail Shakov, 23, recently left the notoriously tough Russian army. He marked his first day as a civilian, which happened to be –27 C, by taking a dip. For Shakov, swimming is a way of unwinding and setting his troubles aside. (Ilya Naymushin/Reuters)

Cold-water swimming may have healing properties

Siberian Cryophile swim club sisters take an icy dip Nov 15 2015

Sisters Liza Broverman, 6, and Yulia Klimenkova, 16, (who says cold swimming cured her of a virus) have been members for years. (Ilya Naymushin/Reuters)

Siberian Cryophile swim club sisters are tough Nov 15 2015

The air temperature was only around –16 C on Nov. 15, when Broverman and Klimenkova were photographed. Their family members say swimming in cold water regularly boosts health. (Ilya Naymushin/Reuters)

'The moment of immersion is a sensation of delight. But my wife says I am crazy.'

Siberia Cryophile swim club polar bear dips all the time Nov 29 2015

Mikhail Sashko, one of the founders of the Cryophiles, showed off his cold-water prowess on Polar Bear Day at a zoo in Krasnoyarsk on Nov. 29. (Ilya Naymushin/Reuters)

When they aren't swimming in cold water...

Cryophile swimmers in Siberia also hunt Dec 1 2015

Bocharov likes to hunt on the Siberian tundra with his dog Laika. (Ilya Naymushin/Reuters)

Siberia Cryophile kids swim in icy cold rivers Oct 25 2015

Snowball fights are also a regular Cryophile club activity. (Ilya Naymushin/Reuters)

'If there's no river, I have to find another way to pour cold water over myself.'

Cryophile swim club members play hockey after icy swims Nov 23 2015

Retiree Vladimir Khokhlov, 71, working on his outdoor rink, says he ‘can’t live without bathing daily in cold water, it’s like a drug.’ (Ilya Naymushin/Reuters)