We did have a boat, and the down side to that is you need more equipment, a float and more rope generally, and weight. We lost taps to the rip tide taking them away, not being back at the right time, and rope breaking while hauling them up due to the tide strain. It's more complicated than doing it off shore for sure, and the workout for you arms hauling those things up, wow!
But a great way to spend a week on the water, and yes it took days before we were ahead on the catching of crab over the eating of it! LOL as good as it is you feel like something else on day 3 or 4. So that's when I started the collection for the freezer. I think in the end though we came home with 2 medium bags of crab and about 4 of prawns. The most expensive seafood ever I'm sure, but the best.