The Ionian Islands stretch Corfu's Venetian old town and Paleokastritsa coves, Kefalonia's Myrtos Beach with its turquoise water against white cliffs, and Zakynthos's Navagio shipwreck cove reachable only by sea.
Sea warming for swimming, Corfu's Easter celebrations the most distinctive in Greece (pot-throwing on Easter Saturday), and Kefalonia's Myrtos Beach at peak photogenic.
Ionians hit 33°C and beaches packed, Corfu Town's Liston arcade at full evening activity, and Zakynthos turtle nesting at Laganas Bay.
Sea at warmest, Corfu's Achilleion gardens pleasant, and the Ionian island ferry network running its full schedule before October service reductions.
Mild winter around 14°C, Corfu's Old Town walking pleasant without summer cruise crowds, and many smaller-island ferries reduced or suspended.