Went down to Bucklands Beach approx sevenish for an ice cream.
While sitting on the wall we noticed a yacht side on to the tide.
The Coast guard boat nearby.
On closer inspection, the coast guard boat was towing the yacht from the top of its mast causing it to heel over.
Once it appeared to be in the channel, they released the tow line, nosed the yacht around, rafted up and procceded to push it back to the marina.
It was near full tide and appeared to have just turned for the out going.
My theory is the yacht some how ran aground, they waited for high tide to help float it off and by towing it from the top of the mast caused it to heel over and reduce the prosect of the keel digging in if towing it from the bow.
Do not know much about yachting so if some one with a bit more knowledge could confirm or correct my hypothesis it would be appreciated.
Or. if some one knows what actually happened I would be interested as well.
Thanks.

Yeah, towing from top of mast would heel the yacht reducing draft and enabling it to float again. I have heard of taking anchor out in dinghy abeam stuck yacht and winching in anchor warp through pulley at top of mast, heels yacht and getting it into deeper water. Works in hard chine runabout, lift one side and hull floats on other chine enabling keel to lift slightly off bottom.