Where exactly is the Chen Tangguan guarded by Li Jing?

# The Devil Child of Nezha Comes into the World#[Where exactly is the Chen Tangguan guarded by Li Jing? 】 Speaking of "Chen Tangguan", we all know that this is a place of special significance for Naju. Where is this Chentangguan?
There are many places in history called "Chen Tangguan". There are now three recognized points.
1. Located in Tianjin. Legend has it that the place where Naju was born is adjacent to the East China Sea. The prototype is the junction of Chentangzhuang Street and Chentang Street in Hexi District of Tianjin. The original place where Naju Temple existed was not restored due to urban planning and other reasons.
2. Located in Sichuan Province. The majestic Guanwushan Mountain in the northwest of Jiangyou City is located at the end of Longmen Mountains. The Chentangguan (also known as Chengtangguan) ten miles west of Wudu Town is located at the junction of the subplain of Northwest Sichuan and Longmen Mountains. Before Deng Aiyu entered Shu on Biyin Pingdao in 263, Chen Tangguan was a gateway to Longmen Mountain, Fujiang River and Pingtong River. The terrain here is dangerous. It can not only keep the two riverside avenues close to each other, but also blockade the entry and exit of mountain areas to Shanxi and Gansu. Legend has it that Li Jing, King of Tota Heavenly Kingdom, once served as the general soldier of the Guan Dynasty, where the three princes were born. "Jiangyou County Chronicle" quotes "Yinping County Chronicle" of the Tang Dynasty as saying: Chen Tangguan is an ancient pass. On the Cuiping Mountain in Yibin, there is a special statue view of Nazha, named Nazha Xinggong Palace.
3. Located in Fujian Province. Chen Tangguan is located in Tongguanling, Tuling Town, northern Hui’an County. It was originally a post road pass from Quanzhou to Fuzhou. It is said that Chen Tangguan, the leader of the peasant uprising in the late Yuan and early Ming Dynasty, built a village and stationed soldiers and horses here, so he was renamed Chen Tangguan.
The three places meet far apart and have nothing to do with each other. Look at the "Romance of God Enclosure" in which it says: "Nazar took off his clothes and sat on a stone, and dipped the seven-foot goddess in water for a bath. I don’t know if this river is Jiuwan River, it’s on the East China Sea Estuary."
From this passage, we can see that Nazha will go through customs with his family. After about a mile, he arrived at the Jiuwan River, which is at the mouth of the East China Sea. Therefore, Nazha’s bathing here will affect the Dragon Palace. If Chen Tangguan is in Sichuan or Fujian, then there is absolutely no need to say "Jiuwan River is at the mouth of the East China Sea". So it seems that the legendary "Chen Tangguan" is most likely in Tianjin.