Aizu is the western region of Fukushima Prefecture. Aizu Wakamatsu City is a center of the region and as the city names themselves as "Samurai City", the area shows the samurai tradition at the landmarks such as Tsuruga Castle and Aizu Bukeyashiki (Samurai residence). It also has been a town of merchants with beautiful storehouses. Ouchi-juku is an old post town which is famous with its traditional thatched buildings that line its main street.
For a day trip away from the busy districts of Tokyo, take a train to the green western side of the city. Mt. Takao is a popular destination for hiking. Different trails lead to the summit - trail #1 goes past Mt. Takao Monkey Park and Takao-san Yakuo-in Temple. From the summit of Mt. Takao you can see Mt. Fuji on a clear day. After a long walk, relax with a leisurely onsen bath. Akigawa Keikoku Seoto-no-Yu is an onsen spa located near Ishibune-bashi Bridge, a spot known for its gorgeous view across Akigawa River in the Chichibu-Tama-Kai National Park.