The largest hanamachi (geisha district) in Kyoto, and also in Japan. It is also the most high-class hanamachi. Iwasaki Mineko, possibly the most famous geiko, came from Gion Kobu. The famous Inoue School of Dance is in Gion Kobu. Also, the Nyokoba is here.
I practice as a geiko in Gion Kobu.