This small yacht had come ashore in Keyhaven recently and washed up on the shore.
Fortunately Keyhaven is very protected, it would be a very unlucky boat which managed to break from it's mooring and float out of the harbour, perhaps on a very strong outgoing tide, but it would be more likely to run aground or hit one of the other boats.
The boat is well kept and lack of damage suggests that it had only very recently come ashore. Lets hope they got it off and afloat safely, especially so as there was a very high spring tide the following week.
Fulham Cottage Riverstand Update
2 hours ago