When you get tired and bored of the monotonous city landscape, it's always a tempting option to run to the nearest Natural park and hide from reality for a bit. Shirvan National Park and Reserve, which once was the bottom of the Caspian Sea, is a lovely place to do that.
You can get from Baku to Shirvan National Park by car or by train. The drive is about two hours, while the train ride takes about five hours.