All ice is melting. The Baltic Sea is almost completely free of ice, while the sheltered lakes in the wood are still frozen up. But even there the ice has started to thin down and melt, especially near the shore and around the rocks.
On the other side we have still frost temperatures on clear nights. Then the air is still cold enough to make the water freeze over again with a fine layer of new ice. The photo above is made at 20:15 and the process of freezing has already begun.