Dear [friend's name],
How are you doing? I am doing super well. So well, in fact, that
I've decided to plan a trip to Heroes Park -- and I want you to come
If you decide to come, we'll be leaving on [date] at [time]. We
will be gone for [length of trip], which means we'll be coming back home
on the [date].
I've got some really fun activities planned, like [list some
activities here]. You should probably bring [types of clothes, gear,
and/or food that your friend should bring] just in case.
I really hope you decide to come. Heroes Park is such a fun place to relax and have a great time with friends.
I look forward to hearing from you soon.