During one of my recent photographic trip I spotted this amazing patterns on the ice of frozen lake. I saw such things many times on photographs in internet but I haven't really seen before such a big ones in real life. How to call it? Crack? Pattern? Creation?
I have posted this on my fanpage in FB and I got an answer from my friend from Poland, that this kind of stuff is being created in process of melting and freezing ice-wholes created by fishermans, who fish under the ice. In my opinion - it can be true - it can have sense, what do You think about it?

In a quite small area I found around 5-6 of them, so the theory about fishing holes looks good as the fishermans always making more than one hole to fish from.

The picture was made quite a long time after sunset so it is little dark, you have to forgive me, but in other hand, the darkness give some more surrealistic and mysterious look for this alien pattern.

If You have knowledge about this kind of stuff - let me know in comment because I am curious about it.