Iya Valley Tours
has two office locations in the valley, but its unlikely that you will ever need to go there since they will pick you up and drop you off from any Iya hotel and/or JR Oboke Station.
Their main Nishi-Iya branch office is based out of the Kazurabashi Taxi
office and this is also the location of the Onomiya
pub and restaurant. Their Oku-Iya branch office
is located near Tani Shoten
grocery store.