一篇英语作文怎么写!假设你是李华,写信邀请你的美国朋友j o h n 参加余龙山露营活动,信中包括：出行人数：6.时间地

Dear John,
How's it going lately?
I am writing to tell you about our camping plan this Saturday morning at Yulong Mountain. There will be six of us and we will gather at the train station square at 8:30 a.m.. We are going to catch the 9:30 train and arrive at our destination at 11:30. We will make our return trip this Sunday afternoon.
Tents and sleeping bags are necessary. Some food and water are recommended, too. And don't forget to bring your coat! It gets pretty chilly in the night.
Best,
Li Hua