Access from the major cities
which sees Google Maps by airplane to see Google Maps by Shinkansen for approximately one hour 30 minutes for approximately four hours
which sees Google Maps by Shinkansen for approximately one hour 30 minutes
which sees Google Maps by Shinkansen for approximately two hours 15 minutes
which sees Google Maps by Shinkansen for approximately one hour
Access to Museum
As for the timetable of the limousine, please see this.
http://www.hiroko-group.co.jp/kotsu/kousoku/limousine/index.htm
As for the access from Hiroshima Station to this museum, please see the use guidance of this museum homepage.
https://www.hiroshima-moca.jp/access/