Lobsters are not native to South China. Why is Lobster Bay called Lobster Bay? It is because of the Lobster stone carving. The stone carvings were built by this ethnic group (non-Han). Before the 2500-200 BC, before the Han Dynasty; the Han Dynasty was seen as a completely different civilization from the food utensils. The ancestors in the picture were recreated from the remains of the bones. Back then, the ratio of male to female is 4:1, the average age is 38. During that time, it is definitely not a paradise for women. On average, three out of every four female died before 38. Hong Kong is definitely making progress here!
The question is that what evidence is provided regarding the look and technologies used by the native who craved stones that belongs to Bronze Age people? Could it be Stone Age or a more advanced Bronze Age civilization such as Sanxingdui Culture (三星堆文化)？The two I found are all facing south, 2 meters above see level, with same geological pattern, and within 10 km areas no farming community can be supported. It is difficult to get there on foot, meaning that those who crafted stones must use boats to get there. Perhaps you already guessed what conclusion I am establishing: if these people are Polynesians, Hong Kong first native people are https://en.m.wikipedia.org/wiki/Polynesians#/media/File%3AParatene_Te_Manu%2C_by_Gottfried_Lindauer.jpg