假设你是李明，你打算和几位朋友在暑假进行一次探险旅行。请根据所给信息，给住在另一座城市的外籍朋友戴维发一封电子邮件介绍这次旅行计划，并邀他一起旅行。
地点：海南岛
时间：7 月15 — 21 日
主要活动：远足、爬山、游泳、篝火晚会和潜水等
注意事项：带好泳衣和护照
注意：1. 词数100 左右（开头和结尾已给出，不计入总词数）；
2. 可以适当增加细节，以使行文连贯；
3. 篝火晚会：campfire party; 护照：passport
Dear David,
How is everything going?________________________________________________________
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I’m looking forward to your reply.
Yours,
Li Ming
　　One possible version
　　Dear David,
　　How is everything going? My friends and I have decided to go on an adventure trip to Hainan Island during the summer holiday. I’m writing to tell you about our travel plan.
　　We’ll be traveling around Hainan Island from July 15 to 21. While there we will go hiking, climbing the mountains, swim near the beach and have a campfire party. We also plan to go ping if weather permits. I’d like you to join us if possible. I’m sure we will have a lot fun being together.
　　Please remember to pack your bathing suit and take your passport.
　　I’m looking forward to your reply.
　　Yours,
　　Li Ming