Just had to write to disagree with some of these comments about the Greedy Greek, we went for a meal there 3 times during our 2 week holiday because the food was excellent and the price was excellent! The food was absolutely delicious here (as with every other restaurant we went to during our holiday) and the price was very reasonable. They don't charge a cover fee (usually 1 euro per person) and we found that 2 3 course meals was around £30 - for people complaining about the price,could you really get 2 top quality 3 course meals for this price in Britain?
This was the best trip we did on holiday! Kefalonia is beautiful and worth seeing. It is a long day but it's worth it (and you can sleep on the ferry on the way back!) The caves and lake are worth seeing, the lake is beautiful. Remember that they may drop you at a resturant for lunch but you are under no obligation at all to eat there, we took a walk into the village instead and it was much nicer. Also, in Argostoli we didn't go to the cafe we were dropped off at but instead walked over the bridge near to the cafe where we saw turtles which was really amazing and unexpected.
We went Dionysis tours who we could recommend, much better than Airtours with the commission that they add on!
We were really lucky and got a great room overlooking the pool and had a great view. Nice rooms, nice area round by pool, nice pool (lots of kins though!) and really handy for centre of Alykanas. Watch out for the maid though, had to do battle to get clean towels and new toliet roll despite best efforts of leaving finished toliet roll in various places in room as a clue! We found she responds best to males - bit of an eye for the men I think! Avoid supermarket where possible, the woman in there tends to get bored and makes up the prices as she goes along just to entertain herself I think!!