Great question — answering as the UphillTech team:
I do not think that hut-to-hut treks in Greece are feasible as there is no real network of mountain refuges. The book Mountains of Greece by Tim Salmon, published by Cicerone (2006), states: The refuge huts are really of little use to the visitor. With the exception of those on Olympus, Gamila and Smolikas, they are unstaffed and locked. I am not sure whether the situation has changed much over the last 20 years. In any case, here is a map showing all refuges and bivouacs: Mountain refuges of Greece . An alternative would be to camp which I have done without issues since the 1980s. What should be feasible (in particular with children), are village-to-village treks. I've tried this in...
Full answer by Tom Heinzl: https://outdoors.stackexchange.com/a/30400 (CC BY-SA 4.0).
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