Take the airport express directly from the airport to Dongzhimen (25 yuan unified fare), then transfer to Metro Line 2 to Jianguomen (3 stops), then transfer to Metro 1 Line to Xidan (2 yuan), and walk 10 minutes after getting off.
Day 1: It is very close from Xidan to Tiananmen Square, and there is only one stop. You can take subway 1 line, or take subway 1 line, bus line 4, bus line 802 and bus line 52 to Tiananmen Square (there are more than 10 buses), or walk there, and it takes 15 minutes to get there. Then walk to Qianmen Street (10 minutes), and you can go to Dashilan Pedestrian Street. After shopping, you can walk directly to the Forbidden City or take a bus. No.5 (get off at Zhongshan Park), the Forbidden City and Tiananmen Square are next to each other. After visiting the Forbidden City, you can go to Gongwangfu and get off at Dongguan Square by bus No.810. It takes only 5 minutes to walk to Gongwangfu (everyone knows after getting off the bus). After visiting Gongwangfu, you can almost go back to the hotel. Take bus 13 from Dongguanfang (Heping East Bridge South-Xicheng Sanlihe River), change to bus 105 (tram) at the west exit of Dahongluo Factory, and arrive at Xidan Shopping Mall. Walk back to the hotel. Just walk there for about 10 minutes, then return to Xidan Hotel from Houhai, start from Drum Tower, take bus No.5 (Deshengmen-Caihuying Bridge), change to bus No.0/09 (East Bridge of Beijing West Railway Station-South Square) in Beihai, and arrive at Xidan Shopping Mall. Walk back to the hotel (but I suggest taking a taxi from Houhai or Gongwangfu.
The next day: I suggest you go to Badaling Great Wall;
Take No.47 (Xiaomachang-Haidian Bridge East) from Xidan Shopping Mall to the south of Jishuitan Bridge. Get off and walk to Deshengmen for about 5 minutes. Take 9 19 express train to Badaling Great Wall, and then take 9 19 to return to Deshengmen. If you are not tired, take bus 47 to Xidan. If you are tired, take a taxi and don't exceed 20 yuan. I suggest you take a walk in Xidan at night.
The third day:
Go to the Summer Palace first, start from Xidan Shopping Mall, take bus No.690 (Qianmen-Summer Palace) or bus No.826 (Lv Ying Garden-Summer Palace), and you can go directly to the Summer Palace. When you walk out of the Summer Palace, you can go to the Bird's Nest and give you two routes:
Take bus No.332 from the Summer Palace (the bus hub of the Summer Palace-Zoo), get off at Huangzhuang North, Haidian, change to subway 10 (Bagou-Jinsong) at Huang Zhuang, Haidian, get off at Anzhenmen, and change to Olympic Pro 1 line (subway North Tucheng Station-subway North Tucheng Station) at Beitucheng East Road to reach Beichen East Road.
Line 2: From the Summer Palace, take bus No.732 (Summer Palace-Luhaiyuan Community), get off at Huangzhuang North, Haidian, and change to subway 10 (Bagou-Jinsong) at Huang Zhuang, Haidian, get off at Anzhenmen, and change to Olympic line Pro. 1 0 at Beitucheng East Road (Beitucheng Station-Beitucheng Station)
But I suggest you take a taxi to save time, because there may be traffic jams. Taking a bus will show you around. Take a taxi around 35 yuan and go directly to the North Fourth Ring Road.
After going to the Bird's Nest, it takes 5 minutes to walk to the Water Cube. After watching the Water Cube, go back to Xidan.
Take bus No.510 from the north of Beichen West Bridge (Bao Shuangquan East-Peony Garden West), then transfer to bus No.22 (Peony Garden West-Qianmen), or transfer to bus No.47 (Haidian Bridge East-Xiaomachang), or transfer to bus No.690 (Summer Palace-Qianmen) to reach Xidan Shopping Center. Then go back to the hotel.
The uniform fare of the Beijing subway is 2 yuan, so you can change at any place. The unified fare for the Airport Express from the airport to Dongzhimen is 25 yuan, the bus fare is 1 yuan, and the taxi fare is 10 yuan. You can start walking after 3 kilometers, every kilometer in 2 yuan.
There are many hotels near your tourist attractions, but the prices are relatively expensive, and most of them are very formal (but some small hotels like to kill customers, especially foreigners). If you want to go, you must first ask the price, ask for the invoice, and try to choose a bigger hotel;
Beijing's specialties are: roasted duck with sugar-stained chestnuts, etc. There is a Xidan Huawei Building next to your hotel, which is sold at 1 building, which is very convenient.
When you came to Beijing in early May, it was already very hot. Just wear short sleeves, but it may be a little cold to go to the Great Wall. Take only one or two thin coats, preferably an umbrella.
Most Beijingers are very enthusiastic. Don't worry about this. Please call 1 10 if you have any questions. Beijing police are more enthusiastic.
Finally, intimate reminder: Because your schedule is tight, I suggest you take a taxi from the Forbidden City to Gongwangfu on the first day, no more than 15 yuan. You can also arrange to return to the hotel from Badaling the next day and then go to Houhai Bar Street, which is more lively at night.
Finally, I wish you a pleasant journey.