This happened in the waters near Antarctica. The New Zealand Royal Navy were on patrol, looking for tooth-fish poachers when their warship got thoroughly crushed by a 60-foot wave!
There's some NSFW language in the video, and understandably so because their ship just got pounded by a 60-foot wave!
You have to have real guts to be able to sail those very high seas! I'll think I'll just keep my feet on land thank you very much!