Swimmers on a beach beach outside Qingdao, China wear masks and full-body suits to protect against the sun and jellyfish.

Some of the masks are store bought. Others are hand made.

"When I, as a Westerner, approached them with my friend, who is from China, they all thought it was too funny that I was interested in their masks. For them it was totally normal and no big deal at all to wear this," Engelhorn says.

"In this area, across from Japan, there are huge jellyfish, one to two- meters wide, which have long tentacles that burn the skin," Engelhorn says.

“It’s sorta like Mexican wrestling to me visually,” Englehorn says.

The masks are often referred to as "facekinis."

Engelhorn found photographing the swimmers harder than expected because most were more serious about swimming than posing.

"[Some swimmers] were a bit shy but still agreed, and many wanted their picture sent to them by cellphone."

“In Germany if you were to go a beach dressed like this, people would be like, '"What the fuck is your problem?'" Englehorn says.

Each individual design seems to reveal something about the person wearing it.

Over time, the swimmers from Qingdao have become internationally famous for their masks.

"In the winter I'm not sure what they are doing. I don't think they go to the pool like that."

This swimmer had been stung by a jellyfish. You can see the marks on his stomach.

"When I asked where they got [the masks] they all had their stories about

which stall on the market sells them.... or how they made the outfit and mask by themselves to eiher save money or use a different pattern and style than the others."