I also went to Olympia, about a week ago.
I had been to Olympia twice in the past and this was the third time. The town looked unusually tranquil and empty.
Being far from the coast, Olympia isn't really a place for summer, but, even so, it was rather unsettling. Recently I am suspecting that the situation of tourism this summer is worse than what is being said on TV and news papers.
I stayed one night and need to eat at least once. I asked two local people for recommendation: one voted for Aigaio and Gefsis Melathron, and the other Gefsis Melathron and Dionysos. So I went to Gefsis Melathron which got two vote.
When I arrived at 9.15, I was the only customer, except for a few locals hanging around without really eating.
I asked for souvlaki, but the waitress - who probably is the owner - suggested me to order from 'magirefta' cooked by her mother, so I obeyed. I ordered soutzoukakia Smyrineika, served with rice. I also wanted horta, but she did not have any and suggested boiled zucchini instead.
The soutzoukakia had a good flavour, but - unfortunately - too salty for me. If I have had a good serving of boiled vegetable, probably I could neutralize the saltiness, but the boiled zucchini (and potatoes) were far too little and had been seasoned already.
The waitress asked me if I was happy. I said "yes", but it was a lie (if my honesty could improve the situation, I would have said the truth, but it could not). I really don't bear with excessive dose of salt in dishes which should not be salty.
So, it turned out to be a disappointment.
To be honest, what I suspect is that there is no good taverna in Olympia, which is a rather artificial town whose raison d'etre is to cater for tourists who visit the archaeological site. I have eaten three times so far in Olympia, but cannot really say that I have ever eaten well.
Soutzoukakia was 6.80 euros, boiled zucchini 3 euros, water 0.50 euro, bread 0.50 euro, total 10.80 euros. At least, the price was on the OK line.
Taverna "GEFSIS MELATHRON"
Georgiou Douma 3, Arhaia Olympia