假设你是李华 写信邀请你的美国朋友john 参加玉龙山露营活动 要求出行6人 集合时间星期六早上八点半

Dear John,
We are going camping on Yulong Mountain this weekend.There are six people.We will assemble at 8:30 Saturday at the Railway station square..and we by train to our destination,the train starts at 9:30,and it arrives at 11:30,we will be back at Sunday afternoon,
Of course we need to prepare some camping things for this camping activity,such as the camping tents,sleeping bags,coats ,water and foods.
And that is what prepare for this camping activity,would you enjoy joining us?
Best wishes
lihua