Good to see it's all turned out well in the end, your boat got saved and the good Samaritan now knows his efforts on your behalf were appreciated.
A little narrative on floods on
east coast Australian rivers.
Once upon a time a state capitol got flooded after a deluge in the headwaters of the river it is built upon. The
government of the day said we'll spend a big chunk of your
money to prevent a reoccurrence by building a flood mitigation dam across the valley below the water
storage dam already there. So they did.
A decade or so later the same
government decided to build another water
storage dam to the south of the city to provide the expanding population with water. The greenies and NIMBYs raised hell so their opponents said vote for us and we'll stop the dam and so it happened.
Then a drought came and everyone in the city raised hell because their lawns went brown. No problem, said the anti dam government, we'll get the private sector to build a
reverse osmosis plant by awarding them a take or pay
contract. However, before it could be commissioned it started raining again.
In the mean time some genius came up with the idea of using the flood mitigation dam for water storage since it was sitting there doing nothing most of the time. You have probably seen where this is going.
The gods hade hubrissy humans so they sent another deluge and because the dam was overfilling and in
danger they opened the flood gates and flooded the city.
Sad but true.