It may look like a water fountain but look again. It's actually a controlled explosion on northeast China's frozen Heilongjiang River to prevent flooding as the river thaws. When the ice melts, it can create ice jams, which is when blocks of ice come together and block the river's flow. To avoid them, professional teams usually set to work along the upper reaches of the Heilongjiang River around April. The explosions are controlled to avoid harming local species.