Shark Fishing Event and Achievement

[Umbra]

I believe that the devs have said that any sea creatures such as dolphins, whales, etc will only ever be purchasable with sea dollars because fishing them up would be morbid/cruel.
I had a similar suggestion a few years ago:

Fishing Events

Besides smaller fish, there should be events where you are able to catch really big fish (whale sized) but need multiple people with you and a large boat to catch. It would make it so that it isn’t just a solo activity and everyone that helped would split the money earned.