They were on a peninsula, as it were, while the soldiers were securing the isthmus.
I returned stoutly; for I had, of course, sunk the Isthmus of Panama beneath the sea.
This part, like an isthmus, was called "Heaven's Floating Bridge."
We can get all the women we want, and of our own kind without crossing the Isthmus.
They landed on the mainland, and, crossing the isthmus, ...