On 09/06/2019 13:15, Simon Jester wrote:

https://www.youtube.com/watch?v=LRpeOuBk5yQ

If they had been wearing cycle helmets they would have been seen.
Worst case the cycle helmet force field would have prevented the crash.

Did the bigger boat have the nautical equivalent of fixed-wheel and no
brakes?

Perhaps the skipper believed that shouting "Get out of the way; I'm not
stopping" was sufficient?