well yes........... but they can't do it very well.
penguins hide from shelter by diving in the water or hiding in deep holes
there are: penguins and king fishers
diving into the water and catch it with there beak
by digging into ice and diving into the water
Penguins have a social temperament. They feed and swim in groups. When searching and diving for food they may do so on their own.
to protect its warm body while diving into the icy water
Despite their cuddly look, penguins are very territorial and will attack if frightened. But they do have some playful traits, As in Diving, Surfing and even tobogganing.
Swimming flightless birds are penguins. Diving birds include dippers, auks, gannets, and boobies. Diving waterfowl include ducks, grebes, loons, cormorants, and shags. Shallow-diving sea birds include the pelican and albatross.
Sorry, but you can't go diving
Plymouth Diving Club
There are recorded instances of Emporer penguins diving up to 565m (1870ft) for durations lasting up to 22minutes. It is possible they can go deeper for longer, but as yet this has not been observed.
Little Blue penguins go out to sea to catch their food, their main diet being squid, small fish and crustaceans, hunting in the shallow waters close to shore. They catch their food by diving, usually diving less than thirty feet. The name of their species class is Eudyptula, which is the Greek for 'Good little diver'. In common with most other penguin species, Little Blue penguins swallow their food whole.