1. Let' the road.

2. Let' the trail.
3. Let' the ______.
--------------------------
Is #2 used frequently? Can we use other nouns in the blank in #3, which have the same meaning as #1 or #2?

1 answer

They are similar.

I'd use #1 when getting ready to go for a ride in a car, whether for a short or long trip. Or maybe I'd use when telling someone else to get going!
https://www.youtube.com/watch?v=i8DRen60X10
Here it is in a Ray Charles song!!

I'd use #2 if I were getting ready to go on a hike in the hills or mountains or something like that.