New voyages immerse passengers in the cultures of Croatia, Greece and Italy with calls at up to nine ports in a single country for select sailings and often including overnights.
'On a single voyage, visiting eight ports in Croatia, nine in Greece or an astounding five in Sicily alone is possible,' according to SeaDream president Bob Lepisto.
Both SeaDream I and II begin their Mediterranean season in May. More than 40 itineraries span the region.
Country-focused voyages include the June 20-27 sailing from Dubrovnik to Venice that delves into Croatia, visiting Mljet, Hvar, Split, Sibenik, Rab, Opatija and Rovinj.
Greece is the highlight the July 25-Aug. 4 Istanbul to Piraeus cruise with stops at Molyvos, Skopelos, Skiathos, Patmos, Paros, Santorini, Navplion (Mycenae) and Hydra.
Italy is featured in the July 29-Aug. 8 round-trip Civitavecchia, with ports including Costa Smeralda, Sardinia; Trapani, Marettimo, Porto Empedocle (Agrigento), Syracuse and Taormina, Sicily; Amalfi and Capri along with Bonifacio, Corsica.
Another highlight for the 2015 season will be a 12-day sailing on SeaDream I visiting Turkey, Greece and Croatia. Departing Istanbul on Sept. 11, the cruise will visit Kepez (for Troy and Gallipoli) and Kusadasi, Turkey; Mykonos, Santorini, Corinth Canal, Itea (Delphi) and Parga, Greece; Hvar, Sibenik and Rovinj, Croatia; and Piran, Slovenia. The voyage ends in Venice.
Inclusive fares start at $3,999, double occupancy.