假如你是李明，学校7月5日就要开始放暑假了，你打算在暑假期间邀请龙翔一起去北京旅行。请根据提示，适当选用参考词汇，写一封邀请信，说明你的旅行计划。
提示：
1. 向他发出邀请；
2. 说明你的计划，包括活动内容、时间、地点等。
3. 约定出发的时间和地点
4. 参考词汇 be going to ,have a trip, start on July 5,visit,the Great Wall, the Palace Museum,
Tian’an Men Square, other places, take photos, Beijing food, Would you like …?If you like to go,…,leave.
要求：不少于60词:开头和结尾已给出，不计入总词数。
Dear Long Xiang,
I hope all is going well. Our colorful summer vacation is coming.
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Hope to see you soon!
Yours,
Li Ming