Badaling Great Wall and the North Eighth Tower at 888 m; Bird's Nest and Water Cube night views; Meals: breakfast, lunch and dinner.
Day 2 moves from a mountain ridge to a city landmark after dark: walk the wall toward the North Eighth Tower first, then read Beijing through the Olympic Park's lit silhouettes.
The Badaling section is the day's walking anchor. The North Eighth Tower stands at 888 metres, giving the climb a clear destination before the route returns toward the city.
Leave time to return from the wall before the night views. Breakfast, lunch and dinner are part of the day's plan, with room to pause between the mountain walk and the city lights.
After dark, the Bird's Nest and Water Cube become the second visual register of the day: two Olympic Park landmarks seen as night views rather than as another hill walk.
Why this orderThe wall supplies Beijing's long historical horizon; the Olympic Park supplies its contemporary architectural frame. One day can hold both without pretending they are the same experience.
What can changeThe source does not provide ticketing, crowd, weather, walking-distance or exact timing guidance. Confirm those conditions and the feasible wall section before fixing the day's schedule.