Last time I was there there were several places opposite the ferry dock (behind the windmill) so I assume they will still be going. They have been doing it for years so you shouldn't have any problems.
Agree with Peterdh , walk off the ferry and literally straight ahead of you over the main road there is a place for luggage drop and several within the immediate area . Once your bags are dropped just walk thru the main square into the old town which will easily take up a nice few hours.
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