一百词左右就好.帮我写一篇英语作文,就说于雷是一位学生,四月一日去郊游,第二天给美国笔友Peter写一封信,时间表请看下

Dear Peter,
I am writing to tell you about my field trip yesterday on April 1st.
We departed on Monday 7 am and got back at 4pm.
We took the bus to a lake and I am glad it was a fine weather. The lake was about 100km wide. During our day there I rowed boats with my firends and we had lunch in a small restaurant. In the afternoon, we climbed the hills and played some group games. I had much fun.
How was your day? I look forward to hear back from you.
Best regards,
Yu Lei