Dear sir or Madam, 

I have seen Your advertisement for a school camp guide in yesterday's International Magazine. I'm gonna show in this letter that I'm a right person for this job.

With regard to your requirements, I believe that I meet all of them. I've just finished high school then I have a lot of free time to spend it in a Camp. I've been studying English for twelve years, I've been playing basket and football since 1999 so I think I'm smart and fit enough. Two years ago I assisted in a Youth Camp in Poland. I organised a lot of sports competition and course leader said I'm good at it.

I've got 10 weeks free time before my college start. I'm also available for the interview at anytime. I look forward for Your answer and wish to meet You in America on this Holiday. 

Yours Faithfully, 

XYZ