

In most places this is included in the accommodation’s bill and isn’t a lot of money.
Some cities have quite huge fees of you want to drive an old car with a dirty engine into the center. Some will even fine you for it.
I suggest getting a ticket for public transportation. There are tickets available for a day, week or month, covering cities, countries or even the whole of Europe.
There are a lot of smaller sailing boats and the beach is practically covered in driftwood, which will be cleaned up once the tourism season really starts.
This is in the vicinity of Saint-Tropez and the locals have a lot of experience dealing with driftwood. No big accidents come to mind.