A very unexpected finding to see it at the urban area.

虎皮蛙 虎紋蛙 (田雞) (Chinese Edible Frog)(Hoplobatrachus chinensis)(Hoplobatrachus rugulosus)

Reference :
蛙蛙世界 - 香港兩棲動物圖鑑 A Field Guide to the Amphibians of Hong kong p138-141 - AFCD HK / Cosmos Books Ltd