The Port Chooser
Sami has the ferry and the shortest crossing; Agia Effimia and Poros run their own cruises; Skala and Argostoli stays want the bus combos. Two minutes to the right quay.
Kefalonia is big - bigger than visitors expect - and the drive to the wrong quay can outlast the crossing several times over. Match the port to your bed and the day gets an hour longer.
Sami - the main door
The only port with the scheduled car ferry (20-30 minutes, from ~$6) plus the featured day cruise (4.5/5, $75). Forty-five minutes from the airport, thirty from Argostoli, with a real harborfront town around it. If you’re basing anywhere central and driving yourself, Sami is the answer to almost everything.
Agia Effimia - the northern neighbor
Ten minutes past Sami, prettier harbor, its own Ithaca cruise (4.3/5 across 56 bookings) that works Gidaki and Kioni into the loop. If your rooms overlook this bay, there is no reason to drive past your own boat.
Poros - the southern door
An hour southeast of Argostoli, with the longer alternative ferry crossing (~50 minutes) and its own day cruise (4.5/5 across 38). The natural pick for stays around Skala’s beach strip with a car - without one, read on.
No car? The pickup formats
The full-day bus tour (4.6/5 across 139) and the Frikes bus-and-boat combo (4.7/5) exist for exactly this case: hotel-area pickup on the far coasts, the drive handled, the boat waiting. The far-coast traveler’s honest best move is not a port at all - it’s a seat.

Book the Sami Day Cruise
Ithaca's coves, a Vathy lunch stop and the swim breaks - 4.5/5, $75, free cancellation to 24 hours.
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