假如你在今年暑假去了一次海南，现在根据下面的要求和提示，向你的好朋友Mary 写一封e-mail 告诉她你的海南之行。
　　1. 参观了许多名胜
　　2. 一次海南之行
　　3.  参考词: last summer, parents, take train or by air, Places of interest,
        beach, See, sit in the sun, run after and play, swim, waves, beat light,
        Can’t help doing(情不自禁), jump into, lose oneself in, view, have a great
        time.
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