ACI Marina Umag

ACI Marina Umag sits in the northern part of Umag's port, right on the western tip of the Istrian peninsula, and it's open year-round — so you're not locked into peak season. The marina puts you steps from Umag's old town, with its narrow streets, waterfront restaurants, and a lively tennis culture (it hosts ATP tour events every summer). It's the kind of spot where you can sort out your boat and slip straight into a proper Croatian coastal town without any fuss.