‘Baywatch’ alum Donna D’Errico says she still doesn’t know how to swim: ‘I can’t even tread water’

The actress famously played Donna Marco in the hit '90s series.

The star recalled how her test took place at the YMCA pool located at California’s Pacific Palisades. The starlet said she was determined to become one of the show's coveted lifeguards. D'Errico, however, had no idea how she was going to convince an entire crew that she could take a dip — or three — with ease.

"You get to be part of the most-watched show in the world," said the 53-year-old. "It was the opportunity of a lifetime. And here I am, knowing full well, that I cannot swim. It was all supposed to be basic stuff, nothing technical. But all I kept thinking was, ‘What the heck am I supposed to do?’ I still showed up at 5 a.m. I was told, ‘Get in the pool, do a couple of laps to warm up.’ Here I am holding onto the edge like a terrified child. And he’s like, ‘Donna, what are you doing?’ Go do a couple of laps. It’s freezing in there.’ I couldn’t let go. I was going to sink. And finally, he’s like, ‘Donna, get out of the pool. You can’t swim.’"