There are very few busses from the station to the castle so please check the bus schedule
carefully. For this trip I got off at the Hino Elementary School (日野小学校前) bus stop to visit Hirai Kanayama Castle and then walked to Hirai Castle
where I got the bus back to the train station. There is not much left to see at Hirai Castle
, but it's worth the short walk to visit and it's right on the bus line back to the station. In front of the Yashima Shouten Mae (矢島商店前) bus stop there is also a small volunteer run information center (I think it's their house) and the proprietors will happily give you maps and materials about the castles. The man's father was one of the main people who surveyed Hirai Kanayama Castle. I spent a good 30 minutes chatting while waiting for the next bus.