The fourth floor of Ningbo Riyuetang is very nice. The fourth floor of Ningbo Riyuetang is a health spa, which is spacious, not crowded and very warm. Ningbo, referred to as Ningbo for short, is a sub-provincial city in Zhejiang Province, a city under separate state planning, an important port city in the southeast coast of China and an economic center in the south wing of the Yangtze River Delta approved by the State Council.