Guangdong–Hong Kong–Macao Greater Bay Area
The Guangdong–Hong Kong–Macao Greater Bay Area, commonly referred to as the Greater Bay Area (GBA) or Pearl River megalopolis, is a megalopolis, consisting of nine cities and two special administrative regions in South China. It is envisioned by Chinese government planners as an integrated economic area aimed at taking a leading role globally by 2035.
Source: Wikipedia — Guangdong–Hong Kong–Macao Greater Bay Area (CC BY-SA 4.0)