Rather than one trail to one destination, the Kumano Kodo is a network of trails crossing the Kii Peninsula in Wakayama Prefecture. However, if you look at the map of the trails below, you will see that all of the trails lead to the Hongu Taisha shrine, or rather to Oyunohara (the old location of Hongu Taisha Shrine). That is because Hongu Taisha is both the physical center of the pilgrimage routes and the spiritual center of the Kumano Kodo.
Kumano Kodo Route Map