Only few kilometers from Děčín in the mother of pure nature is located the mountain Sněžník (723 m height above sea level). There is 33 m high observe tower at the top of the mountain, which is one of the oldest observe towers (built in 1864) in Czech Republic.
Distance from parking place to the tower is 2 km and you will get over vertical distance of 130 m. We would definitely recommend you this trip, because the view from the tower is very beautiful.