I'm sitting in a tiny, open-air seafood restaurant in Yeonhwari fishing village in Busan, South Korea, waiting for my breakfast.
In the distance, on the rocky shore, a local haenyeo ("sea woman") is picking through her morning's catch.
"She's late," says a fellow patron when she notices me staring. "All the other haenyeo have already finished their diving and delivered their catch."
The subject of many documentaries, they're a dying breed - an estimated 20,000 haenyeo still work in South Korea - due to the intense physical difficulties of the job.
While most haenyeo usually dive about five meters and stay underwater for 30-second intervals, many are capable of diving as deep as 20 meters and staying underwater for as long as two minutes.