Sea you in a moment
Hang tight. We're checking the weather.
Sea you in a moment
Hang tight. We're checking the weather.
Departing Trieste, Italy on September 23, 2026, the Holland America Line (HAL) ship Oosterdam runs this 21-night Croatia, Greece & Istanbul Collectors' Voyage sailing. It's a classic Mediterranean cruise. Travelers sailing in September can generally expect mild, changeable weather that can turn cool and wet. Ports of call include Trieste, Italy, Rijeka, Croatia, Split, Croatia, with 14 more along the way. Scroll the daily outlook below to pack smart for every port of call.
Trieste, Italy is a scheduled port of call on day 1 of the 21-night Croatia, Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
Rijeka, Croatia is a scheduled port of call on day 2 of the 21-night Croatia, Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
Split, Croatia is a scheduled port of call on day 3 of the 21-night Croatia, Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
Day 4 of 22 is a day at sea aboard Oosterdam, cruising between ports on the Croatia, Greece & Istanbul Collectors' Voyage itinerary.
Santorini, Greece is a scheduled port of call on day 5 of the 21-night Croatia, Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
Bodrum, Turkey is a scheduled port of call on day 6 of the 21-night Croatia, Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
Kusadasi, Turkey is a scheduled port of call on day 7 of the 21-night Croatia, Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
Istanbul, Turkey is a scheduled port of call on day 8 of the 21-night Croatia, Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
Istanbul, Turkey is a scheduled port of call on day 9 of the 21-night Croatia, Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
Day 10 of 22 is a day at sea aboard Oosterdam, cruising between ports on the Croatia, Greece & Istanbul Collectors' Voyage itinerary.
Piraeus, Greece is a scheduled port of call on day 11 of the 21-night Croatia, Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
Nafplion, Greece is a scheduled port of call on day 12 of the 21-night Croatia, Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
Day 13 of 22 is a day at sea aboard Oosterdam, cruising between ports on the Croatia, Greece & Istanbul Collectors' Voyage itinerary.
Istanbul, Turkey is a scheduled port of call on day 14 of the 21-night Croatia, Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
Istanbul, Turkey is a scheduled port of call on day 15 of the 21-night Croatia, Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
Day 16 of 22 is a day at sea aboard Oosterdam, cruising between ports on the Croatia, Greece & Istanbul Collectors' Voyage itinerary.
Kusadasi, Turkey is a scheduled port of call on day 17 of the 21-night Croatia, Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
Santorini, Greece is a scheduled port of call on day 18 of the 21-night Croatia, Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
Rhodes, Greece is a scheduled port of call on day 19 of the 21-night Croatia, Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
Day 20 of 22 is a day at sea aboard Oosterdam, cruising between ports on the Croatia, Greece & Istanbul Collectors' Voyage itinerary.
Chania, Crete is a scheduled port of call on day 21 of the 21-night Croatia, Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
Piraeus, Greece is a scheduled port of call on day 22 of the 21-night Croatia, Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
Planning another sailing? Browse our Holland America Line (HAL) cruise guide for practical tips and ship ideas.
Already thinking about your next sailing? See what CruiseDirect has.