
Iwakuni Station is on the JR San-Yo line, about 45 minutes from Hiroshima. Shin-Iwakuni Station is on the shinkansen line.
Buses run from Iwakuni Station to the Kintai-kyo bus stop (about 15 minutes), where most of the attractions lay. A cheery cartoon map near the station makes it look like an easy walk, but the route is considerably longer and less direct than drawn.
A cable-car takes visitors up Shiro-yama to the castle (see below). It's ¥540 for a return trip, but a combination ticket can be purchased at the bridge allowing admission to the bridge, the rope-way and the museum inside the castle for ¥840.