After the biggest nuclear players signed a convention about prohibition of nuclear test in three mediums, nuclear tests went underground. Both USA and USSR trie to use nuclear bombs for industrial aims. USSR used them for different goals: imitation of seismic activity, stopping underground fire, geologic research and study etc. One of more illustrative examples is Atomic lake. Because of very dry climate any agriculture in Kazakhstan was very difficult. Now, at the confluence of two rivers it was decided to create new lake as a water reservoir for droughty years. At the level -178 meters nuclear charge was exploded, which resulted in a huge crater, 500 meters in diameter and 180 meters deep, almost ideal circle shape. On the spot we will learn more about this lake and its history (at some moments funny) and visit the bunker, where literally red button was pressed.