Hi Pscylo,

Garfish are more of a sport fish ( on light float tackle ) - like you
said, they are supposed to be edible but a lot of people get put off by
their green bones!

Mackerel can be easy to catch on basic gear and are good to eat too -
especially if you take a disposable BBQ and cook them on the beach.
There's plenty of other good stuff to eat in the sea but most of it is
hard to catch and often requires good local knowledge of where to go,
and sometimes requires more expensive gear to catch. When I say more
expensive gear I mean that mackerel can be caught as close in as a few
yards from the shore whereas bottom feeding fish are often further out
requiring better gear to get the distances required.

You don't need a license for sea fishing.

Cheers - ETV