Hi!
The answer that makes the most sense in the situation is:
We decided to take the path <em>around beneath the lake</em>.
I know that this is kind of confusing, but if you don't overthink it, it makes sense.
I hope this helped!
I know that the person in the comments said this, but I thought I could try to explain it a little bit.
God bless,
Sofia
The missing word is a verb.
Simply choose an appropriate verb that makes sense.
Examples:
placed
pushed
will move