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Free cancellation · Trieste
Trieste sits where Italy meets Slovenia and the Adriatic, which makes it an unusually good base for crossing borders on a single day out. You can be underground in Slovenia's karst caves by mid-morning on the Postojna Cave & Predjama Castle Excursion - Entrance Fees Included, or spend the day winding through Istrian hill towns on the Istria Day Trip from Trieste: Koper, Grožnjan & Muggia. Every day trip listed here can be cancelled free of charge, so plans can shift with the weather, a late ship, or a change of mind.
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