About 800 years ago, these vine bridges were built by the Heike clan as a means to access their riding grounds at Mt. Tsurugi, where they trained. The bridges also connect to the Oku Iya campgrounds. These two bridges have been named "male" and "female" respectively, hence are sometimes referred to as the "wedded bridges."

The nature here is deep and immersive, and offers a different experience from the main Vine Bridge, so both spots are well worth the visit.