From SHIN-OSAKA station, take the Shinkansen to HIMEJI station, then proceed on JR Sanyo Line to AIOI station (train bound for BANSHUAKO), then proceed on JR Sanyo Line to YOSHINAGA station (train bound for OKAYAMA). From YOSHINAGA station to Hattoji villa, proceed by bus or taxi. (Train approx. 91 minutes + Bus approx. 32 minutes)

From SHIN-KOBE station, take the Shinkansen to HIMEJI station, then proceed on JR Sanyo Line to AIOI station (train bound for BANSHUAKO), then proceed on JR Sanyo Line to YOSHINAGA station (train bound for OKAYAMA). From YOSHINAGA station to Hattoji villa, proceed by bus or taxi. (Train approx. 78 minutes + Bus approx. 32 minutes)

From HIROSHIMA station, take the Shinkansen to OKAYAMA station, then proceed on JR Sanyo Line to YOSHINAGA Station. From Yoshinaga Station to Hattoji villa, proceed by bus or taxi. (Train approx. 91 minutes + Bus approx. 32 minutes)

The bus fare costs 200 yen from Yoshinaga station to Hattoji Villa. (The JR Kansai Pass is not valid)

Also be careful !

Valid trains are below :

• - Non-reserved seats on Bullet Train "SANYO SHINKANSEN" (Shin-Osaka⇔Okayama)
• - Non-reserved seats on Express Trains 'HARUKA, KUROSHIO, THUNDERBIRD, KOUNOTORI, SUPER HAKUTO (Kyoto⇔Kamigori) etc.'
• - Special Rapid Services, Rapid Services, and Local trains on JR-WEST Conventional lines

And these trains below cannot be used : 

• - Bullet Train "TOKAIDO SHINKANSEN" (Shin-Osaka⇔Tokyo)
• - Bullet Train "SANYO SHINKANSEN" (Okayama⇔Hakata)
• - Bullet Train "KYUSHU SHINKANSEN" (Hakata⇔Kagoshima-Chuo)

In order to have more information about JR pass, click here : Japan Railway Pass