We now have amazing videos (reality television) of the struggles of fishermen in their big boats fighting the big bad ocean.
In Tonga, Deep Sea fishing just means you fish out in the deep ocean, which could mean your out for a couple of hours from shore on a small boat, some not much bigger than a dingy. You could be a whole day’s out, some go by themselves, others with company.
All you have with you is your ’line’ and knowledge of the waters, no fancy radars or fast moving stuff.