Just wash it with clean soap and water
as you would a car. Then inspect very carefully for corrosion
, particularly anywhere other metals touch or for hair line cracks. Other than that leave it alone.
Remember the surface is probably anodised and aluminium if damaged will form a protective oxide layer if you leave it alone.
I was tied up to this Beneteau
Figaro at the weekend. Other than the fact it doesn't have any cleats
to tie up to the other thing I noticed was the white painted mast had lots of chips in the paint and looked terrible and the boat isn't that old. Fast boat, looked worn out.