Just wondering on the late September-mid October timeline for Croatia. Are ferries and transportation services reduced that would add time constraints for a trip?
We were in Croatia the end of September in 2021. We visited Dubrovnik, Korčula, Split, Zadar, Rijeka, and Zagreb.
It was warm enough to swim down south and the ferries were running. Come October things change. In fact, our hotel in Zadar was closing for the season October 2.
But, I would do a little research. It seems that the shoulder season has moved to mid October so places may stay open longer. Even if you visit then you can always find restaurants open (locals eat out too) and things to do.
Of course Rijeka and Zagreb are open all year round.