Mackerel is incredibly easy to catch from a small boat using a handline, and tastes amazing. It is basically throwing itself at you. We caught 12 in about 20min, bbq’d them a few hours later and they were the tastiest fish I’ve ever eaten. Don’t think I’ll ever pay for it in a restaurant again. Recipe is: catch mackerel, cut off head and gut it, roughly fillet it, add some salt and pepper and apply to fire for a few minutes.