What to optimize for in Hersonissos
Hersonissos stays intentionally focused: one local full day to Dia Island and one shorter sunset sailing to Ag. Georgios Bay, clearly separated for resort-side guests.
Hersonissos is strongest for travelers who want to keep the cruise local to the resort zone. The key is understanding that the fuller day goes to Dia Island while the sunset format shifts to Ag. Georgios Bay instead of pretending both products are the same route.