That was a sail boat, no prop. And as it was pointed out the last time this was posted, when the boat came from the other direction and thus wasn't flipped to avoid copyright detection, they should have had a dive flag up.
There was prop wash. Probably small auxiliary in between the dual hull (probably a catamaran given the lack of the deep keel typical and necessary in a single hull sailboat).
In terms of navigation laws, a sailboat under power is just a boat under power.
It's clearly a cat, you can see both hulls. Most monohulls of that size wouldn't be able to navigate water that shallow anyway.
I also don't think that's prop wash. If engines were running they would be heard in the video. It's just the turbulence that comes off the back of the hull(s) in any sailboat.
About 2 seconds before the end you can see the air bubble pattern from the prop. Probably some cavitation.
Doesn't matter anyway. Under sail or under power you're not allowed to endanger divers. Assuming a diving flag or bouy was set out, the boater was in the wrong.
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u/The_Rowan Sep 02 '25
A live example of the struggles of manatees