You can buy the Japan Rail Pass Online at
Tour of the Osaka Castle for Free using Japan Rail Pass;
shows how to go to Osaka Castle Park in Osaka Japan for free.
Also shows how to use Hyperdia transport search tool ; Google Maps Street View,; Osaka Loop Line and all relevant information about how to go to the Osaka Castle Park.
The links used in this video are:
1. Google maps:
2. Hyperdia search tool:
3. Japan Rail Pass:
4. Kansai Aitport Rapid Service for Kyobashi:
5. Osaka Loop Line:
AloJapan.com