Scuba divers who have encountered strong currents, either expected or unexpected, might appreciate what John Hoover went through recently during a dive off Maui's Nakalele Point.
The massive vortex and powerful surge appear to have been generated by strong surf, and it remains unclear whether Hoover got swept up intentionally.
Nobody was injured, according to the video description.
But the footage is generating comments on the Scuba Diving magazine Facebook page, not all of them complimentary.
"Not a good idea. Who wants to get cheese-grated along the reef?" reads one comment.
"Lucky they weren't crushed against the rocks," reads another.
Then there were these:
-- "Spectacular image but... just too crazy! It looks like the diver gets swallowed by a huge monster..."
-- "Just did this same type of dive in Mexico... site was dubbed 'the washing machine.' Insane ride!"
To be sure, it looks exciting. But it also looks treacherous.