According to folklore, Thục Phán defeated the last of the Hung kings in 257 bce and founded the kingdom of Âu Lạc, choosing the site of Cổ Loa as his capital. Given its relatively large size, Cổ Loa maintained its dominant presence in the northern floodplain of the Red River Delta and would have required a large amount of labour and resources to construct.
The mythical story goes that when the fortress was being built, all the work done during the day was mysteriously destroyed at night. The king made a sacrifice to the gods and in one night, a golden turtle appeared to him in a dream and told him the fortress was built on the turtle's carapace. The king was instructed to build the city in a new location, that of present-day Cổ Loa. The king did so, and the city was soon finished.
Out of gratefulness to the king, the magic turtle gave the king a claw that he could use as a trigger on his crossbow. When used, it multiplied its force by the thousands. However, one of the Qin dynasty general, Zhao Tuo, took advantage of the decline of the Qin and created his own kingdom north of Âu Lạc called Nanyue. He tried to conquer his southern neighbour but was defeated. Instead, he married his son to the daughter of the Thục Phán. When the son was in Co Loa, he discovered the magic turtle's claw and stole it. His father then proceeded to invade Âu Lạc and easily defeated it.
Stories of the Thục Phán's demise vary. Some say he committed suicide by jumping in the ocean. Some say he was borne off to sea by the magic turtle to never be seen again. In some versions, he was told by the magic turtle about his daughter's betrayal and killed his own daughter before killing himself.
Option 3: Biking to a countryside experience simple life of local people and their Farm, Discovering Red rever - The most largest Rever in the North of Viet Nam, visit Long Bien Bridge built by Friench in last Century and looking down Red river delta. Biking back to centre Parking in late afternoon, get the Car go back your Hotel. Tour the end