(CNN)If you ever find yourself hanging out on Antarctica's Danger Islands, we hope you like penguins. There's a lot of them there.
A previously unknown "mega-colony" of Adelie penguins have been found on the islands, which sit on Antarctica's northern tip.
More than 1.5 million of the birds were found in 2015 during a survey of the area, according to a report in the journal Scientific Reports.