In this case run aground as this boat has:
Was searching for something else & found this one. Running onto the bank like this is easily done, especially at high water. These folk are doing right by rocking the boat but if the tide is going out then they probably need another boat to give them a pull whilst they continue to rock and they need to get a move on! If the tide is still coming in, which I doubt, then no need to panic. However everything about this picture suggest its top of the tide so for those of you who don't know what to do then the engine needs to be in reverse and, apart from the 'driver', everyone as near to the stern/back as possible and keep rocking. If there is no tow forthcoming and the engine won't budge it then there is one last but drastic solution, the strongest crew member to jump over the front/bow, their shoulder as low as possible against the sharp end and push. It can be really surprising how easily a boat can slide off the bank with a well applied shoulder. The reed growth suggests that the water will be cold though. Is the tide going down? It is if it's flowing TOWARDS Gt Yarmouth!