At some marinas in Croatia, there is luggage storage.
Baotic Marina in Croatia has luggage storage, you can leave them by the Marina reception desk. Please see the prices below:
€3,50 per luggage piece, per day
€20.00 per luggage piece, per week
Kastela Marina in Croatia, Please see the prices below:
€3,00 per luggage piece, per day
See here for further information if your marina is not listed above.