
You can also try to charter a fishing boat yourself at the port of Chuzir, but often their condition isn't made for a relaxing trip so that you might as well pay 50 Euros more to be on the save side.
One should also consider that the journey might take more than 10 hours, because the lake is pretty tricky: Near the shore it looks very calm, but off the shore the sea conditions might become pretty rough. And when, above all, it starts to rain a closed cabin will be all you want. Most of the fishing boats at Khuzir harbour won't have them anymore.