How many days should you plan for a trip to a major city in Northeast China?

Before my trip, I consulted numerous bloggers, books, groups, and trip.com for recommendations on numerous attractions. The table below summarizes the number of days I actually visited and the recommended number of days. I don't offer route recommendations because this depends on individual travel time and accommodation options. I entered Dalian and exited Changchun, avoiding backtracking. I also included a three-day road trip to Changbai Mountain and an eight-day road trip to Hulunbuir. Therefore, the table below only provides recommended days (I actually spent more time than listed) and attractions (some of which have travelogues). Also, if you have a lottery ticket, it's not mandatory to visit these places; they aren't essential recommendations. ① Dalian 2 Days: Xinghai Square, Cross-Sea Bridge, Black Stone Reef Park, Dongguan Street, (Russian Style Street), (Venice Water City), (Sea Rhythm Park). ② Dandong 1 Day: Hushan Great Wall, One Step Crossing, Yalu River Broken Bridge, (Andong Old Street). ③ 2-day Shenyang: Forbidden City, Zhongjie Street, (Zhang's Mansion), Zhaoling Mausoleum of the Qing Dynasty + Beiling Park, (Dongling Mausoleum), Xiaoheyan Morning Market, (Xiaonan Church), Northeast Bathing. ④ 3-day Changbai Mountain Scenic Area: The southern slope is the most beautiful, followed by the western and northern slopes. Don't be too obsessed if you want to see Tianchi Lake. ⑤ 2-day Harbin: Siberian Tiger Park, (Sun Island), Saint Sophia Cathedral, (Alexeev Cathedral and other churches), Harbin No. 6 Pharmaceutical Factory, Central Street, Chinese Baroque Cultural District, Songhua River (Stalin Park) and Flood Control Memorial Tower. ⑥ 1-day Changchun: Yongxing Farmers' Market, Puppet Manchukuo Imperial Palace, (Guilin Road Cafe or Night Market), (Here Are Mountains). Travel is a combination of food, accommodation, transportation, education, and entertainment. Everyone has their own unique perspective on travel. I hope everyone will find it rewarding! #HeilongjiangProvince #JilinProvince #LiaoningProvince