These people were very lucky.
"A high school teacher was slammed against breakwater rocks as he attempted to rescue students from pounding seas as their waka sank off Port Taranaki yesterday."
"Mr Poole said the waka ama (outrigger canoe) team had no intention of leaving the safety of the harbour for their 2pm training session but were caught by rising seas, which swamped the boat and forced them past the main breakwater."
"The waka was smashed to pieces after the crew used it as shelter, swimming to the breakwater during lulls."
We know about people being taken by the sea.