Robert Redford Hits the Beach in a Speedo (PHOTO GALLERY)

Robert Redford's not ready to hang up his Hollywood sex symbol status, and he's got the Speedo-style swimsuit to prove it.

The 80-year-old legend took a dip down in Mexico, where he's vacationing with his wife, Sibylle Szaggars. Long before Hemsworth, Tatum or Cooper ... there was Redford.

And the Sundance Kid can still work it.