A group of penguins in the water is called a raft but on land they’re called a waddle. – WTF Fun Facts
Source: https://www.cabq.gov/culturalservices/biopark/news/10-cool-facts-about-penguins
raft
WTF Fun Fact – Kon-Tiki Expedition
In 1947, Thor Heyerdahl, a Norwegian adventurer and scientist, sailed 5,000 miles across the Pacific in a handbuilt raft (known as the Kon-Tiki Expedition to prove the ancients could’ve accomplished this too. – WTF Fun Facts
Source: https://en.wikipedia.org/wiki/Thor_Heyerdahl