Seen plenty of people fishing the salt from a pontoon boat. Have to watch rust though, the metal frame is not really suited to the salt. Useful if you are handy with a welding kit.

As mentioned, always safety first. Even wading, the sea deserves respect. Friend last night decided to leave his yak and fish from the shore as there was a strong wind forecast. The shoreward wind increased the incoming tide and he almost got cut off near some cliffs; got knocked over by some rollers and pulled in by an undercurrent. This guy is one of the most experienced salty fishermen I know and he still got caught out. Thankfully he finished the session with only a few bruises, some hard learnt lessons, quite wet and a nice fish.

Here is a picture he took of the fish before returning it, with the camera perched on a rock. Stunning sunset.