It will be hard to pick a favorite day on this Emerald Cruises yacht trip that begins in the magnificent city of Dubrovnik ...

Windstar Cruises' namesake, Wind Star, is a 148-passenger masted sailing yacht that offers a special Greek islands experience, calling on some of the region's smaller off-the-beaten-path ports.

Explore the Greek islands with a cruise company actually based in the region. Celestyal Cruises has its headquarters in Athens and focuses on sailings around the Aegean Sea and the Mediterranean.