write a letter to your friend telling him or her about the plans you have for an excursion and invite him or her to join you

To blah blah blah*

It has come to my attention and awareness of an excursion far out in the great plains. Im traveling by ship and was sending this letter to ask if youd be interested we leave in a few days of short notice. If you can come let me know ahead of time for this journey will be long and im unaware of when it will end. We board the dock by 3 in the middle of the day and leave short after.

yours sincerely bob marley

Explanation:

I cant really tell when the time this should be written but this should do. you can always revise if needed.

Dear John:

How is going? I hope you're ok, I'm writing you this letter because I'm going to an excursion in the woods the next weekend and I was hoping that you could join me and my friends, let me know if you're interested, I'm looking forward to it.

Best wishes

Jane

Explanation:

This little example of a letter follows the rules of an informal kind of communication since it is going to be sent to a friend, the are several elements that demonstrate the informal approach such as the use of contraction and general casual vocabulary as well as direct expression to convey the information.