Take the train out to Kojima Town and hop on the jeans bus to visit and shop in the largest jeans and clothing manufacturers in Japan. You can even buy a jeans inspired kimono.
Next to Kojima Town you can visit Mizushima Town which is home to some of Japan's largest companies and their plants. Mitsubishi Motor Corporation, Mitsubishi Chemical Company, Japan Future Enterprise (JFE) which used to be the world's largest steel plant.
Hop over the Takahashi River and you will arrive in Tamashima Town and Funao Village which is famous for growing Okayama's muscat grapes as well as other fruit, vegetables and flowers.
It may seem strange that a city can be an historical centerpoint, a place where enormous industrial complexes exist and rolling hills of green fields but when you travel outside to regional places in Japan you will discover how cities have made this dynamic work.