Generally, outrigger races have 6 people in the boat and a 9 person team. An escort boat will hold your reserve people, and then drop them in front of the canoe when you need to swap people out.
The problem is that you need to drop people around 200m in front of the canoe so the canoe can have enough time to prep for the crew change, but with that distance, the wave height can obscure the crew from the person steering.
The solution? If you're the one being dropped, you're expected to splash violently. Create as much splash as possible so the canoe can see you, even behind a wave.
The fun part is what gives signal to the canoe is the same thing that gives signal to sharks. Our coach used to say the adrenaline helps us in the race.
A hyperbolic example would be imagine a pole vaulter with a safety sausage attached to them.
I’ve heard this sentiment before, and can sort of intellectually follow, but man. I love scuba diving, I love the ocean and its varied and alien and multi-scale inhabitants. I’ve spent weeks on a live-aboard boat explicitly to seek out megafauna like sharks and rays (same subclass as sharks).
When I start my descent, I love to turn around and see my exhaled air bubble up, up towards the sun rays in the top layer of the water that slowly fade further away as the pressure on my ears builds and I enter the unknown ocean. It’s the most relaxing feeling, and I often remember it to go to sleep.
How beautifully individual our preferences can be. :-)