days inn forbidden city hotel to great wall

It will be summer in June, with the temp range of 20C to 32C. You can take along both the long-sleeved and short-sleeved shirt, shorts and a light coat. As it may rain from time to time, you'd better prepare simple rainy gear as well.

Which section of Great Wall are you referring to? If it is Badaling, you can walk from your hotel to Wangfujing MTR Station to take subway line 1 to Fuxingmen, where transfer to subway line 2 and get off at Jishuitan Station, from which you can walk to Deshengmen to take bus no. 919 or 880 to the destination directly.

if it is Mutianyu, take subway line 1 at Wangfujing to Jianguomen, where transfer to subway line 2 to Dongzhimen. At Dongzhimen Outer, you can take No.867 to Mutianyu directly in about 2.5 hours.