Once Male One and Male Two get the hang of being wet, the keepers will fill a small pool halfway with water and shoo the birds in. This march of the penguins will happen three times a day, every day, until the lessons take.
Soon, they may have siblings. The parents have produced another clutch, but zoo staff has yet to check the eggs to see if they're fertile, zoo spokeswoman Jane Ballentine said.
And four other penguin pairs are expected to breed this season.
That's a lot of swimming lessons.
Home: South Africa and Namibia
Eggs: 2 at a time per mating couple
Incubation: 38 to 42 days
Diet: Smelt, sardines, squid
Swim speed: Up to 12 mph
Natural enemies: Sharks, Cape fur seals
Life span: Up to 15 years in the wild; 29 years in captivity