I usually go by myself.
I recommend one day in Macau and two days in Hong Kong. Macau is relatively small. Enter from Zhuhai Gongbei Port at 7 o'clock in the morning. As soon as you enter the door, there is a free casino car on the right hand side. The attractions are near the casino. You can mainly visit Ruins of St. Paul's, Macau Tower, and the Venetian.
and Xinputin Casino. In the evening, take a speedboat to Hong Kong, see the night view of Victoria Bay, and find a place to stay in Mong Kok.
After strolling around at night, you can go to Victoria Peak to overlook Hong Kong during the day, and then walk around Tsim Sha Tsui, Central, and Causeway Bay.
Various stores are definitely a shopping paradise. On the third day, you can go to Ocean Park, Disneyland, etc. There are many travel agencies on the first floor of Gongbei Zhongzhu Building. There are one-day tours every day, and the content is roughly the same. They are all must-go places for tourists.
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The price is around 400.