I'm taking the Temples and Tavernas cruise on OV1 next month and would appreciate comments from any previous cruisers on this trip. In particular I would welcome comments about the excursions offered in the various ports of call:

Dubrovnik
Corfu
Kefalonia
Katakolon
Piraeus (Athens)

Reading comments on this forum, it seems I should be doing my own thing in Piraeus and using the Metro.

Any help would be appreciated.

Thanks