Hi, I wondered if anybody has a recommendation for must-see things on the island of Corfu?
I can't answer your question, but you could probably get a lot of info if you go to Cruise Critic.com.
This is in their Ports of Call forum: https://boards.cruisecritic.com/forumdisplay.php?f=594
You could also ask on the CC board specific to your cruise line. And if you go to the roll call specific to your sailing, you may find that other cruisers on your sailing are organizing private tours or outings.