This is what it feels like when a wave the size of a five-storey building crashes down on you.
The World Surf League has revealed its five nominees for the Wipeout of the Year.
And it's not pretty.
The surfing daredevils chasing the biggest waves around the globe are rightly lauded for their courage and skill, taming monstrous walls of water everywhere from Portugal to California, Hawaii and Tasmania.
But when it goes wrong, it goes horribly wrong.