First I thought that this postcard was a painting :) But in fact it's a photo, taken by a man from Saarijärvi, Western Finland and shows morning fishing. According to the sender, fishing is very popular in Finland, especially during the summer, but also in winter - through the ice.
I tried fishing only once in my life, without any success, maybe that's because I find it a bit boring. But I guess it must be a great way to relax yourself. And a great reason to be on a beautiful postcard :)