Wuyi avenue, Furong District. Heimi Peak, also known as Dongyang Mountain, is located in Wangcheng County, about 30 kilometers north of Changsha City. Upon inquiry, the Heimifeng hot air balloon in Changsha is located in wuyi avenue, Furong District, Changsha, with a relatively open terrain. Hot air balloons use heated air or some gases, such as hydrogen or helium, whose density is lower than that outside the balloon to generate buoyancy.