Fishing on the edge

That tiny dot in the front of the island is a ice fishing russian man. Even the ice does not look very strong it's about + 10 cm and is safe to walk on in many places. Even 5 cm is enough. However, due of "warm" weather this week, there might be spots where thickness varies less than 5 cm, hence I think that man took quite a risk, but if a man need to get fishes then man have to go to get fishes.