Yamawa Valley

The Yamawa Valley [山盒汕; やまわ・だす] is the name for a large region of western Heisai Prefecture. It is incorporated in the city of Yamawa, which lies below the slopes of the north-western Tsuba mountains. 
It is known for its agricultural heritage and for being a producer of green tea, one of the only areas in the Haidatsu region to export this product. The valley is also known for being picturesque and quaint. The local dialect is slightly different from the typical Yamawa-Heisai variety of Kantonese, and features a nasally tone which many find strangely pleasing and/or amusing.