They say there are two types of sailors, (1) those that have run aground and (2) those that will one day run aground. I'm now in the former camp.
I discovered just how shallow the North Arm of the Port River (Port Adelaide) is on Saturday, unfortunately on a falling tide only 30cm below the high tide level. To make things worse, the next tide was a so-called "dodge tide", i.e., not a high tide at all. Port River mud is impressive in it's suction ability too. Full reverse was unable to to dislodge me, and by the time I tried to kedge off, it was too late.
So I spent a lovely night serenaded by Torrens Island Power Station waiting for the next high tide the following morning.
On a positive note, it was a great time to clean my hulls. And nothing damaged except my pride :-)