Mutianyu
I chose this wall segment. I'm not dissapointed. Though there were several people, is wasn't that crowded as they said is Badaling. And I took the cable car to Tower 14 and went left toward tower 20 (though I reached just tower 18), and that zone is less visited, more solitaire spots for good pictures. From t.14 to t.6 (where the tobogann and chair lift are) is more visited, but good enough. I wanted to reach the limit to see the unrestored sections but it was too long and high (i didn't training enough)
I hired a driver called Shane, he was the most kind and communicative I contacted previously, so I felt he would be reliable and friendly. I was right. Though we negotiated 600RMB for the whole day, a bit expensive according to the threads I have read here, I was more interested in a good service than the cheapest cost. Coming back to Beijing we stopped at Olympic park, where I spared 30 minutes, more than enough for good pictures.
Days have been sunny this week in Beijing. Tomorrow I fly to Xi'an, hope I still have the good luck, though I'm checking it's colder and afternoon rains. And I'll take the famous bus 306 (a bit nervous about the bus station, I admit), hope everything goes fine. Here in Beijing everything went perfect. I could see Tianamen, forbidden city, Summer Palace, Nanluoguxiang, Wangfujing, Night market, PEarl Market, Temple of Heaven.. but I realize there's a LOT to see. Coming back from Guilin I still have 1 1/2 days to hang around..