Musashi Shrine is a small shrine near the Musashi Village. It's one of the must-see spots for Musashi fans, because this is where the grave of Musashi Miyamoto is located. Beside his grave is also the grave of his mother and father. The shrine itself was built around the grave in the 1970s. As one would expect, it enshrines Musashi. As such, it is considered to be a popular shrine among athletes to pray for victory, because Musashi Miyamoto was strong and is said to have never lost a battle.
The shrine and graves are free. If you continue on the road from the shrine, it takes you to a spring that is said to have pure and good-tasting water. I concur that the water there is better than the bottled water!
The Musashi Shiryokan (Musashi Museum) is located within the area of the Musashi Village (Musashi no Sato) with a small garden, statue of Musashi Miyamoto, and Musashi Dojo.
The museum is small but has some interesting artifacts. Although much of the collection did not actually belong to Musashi himself, they are still authentic historic samurai artifacts. If you only want to see Musashi items however, the museum does have a few. The large painted screen was actually painted by Musashi himself. In addition, there is a mask that was made from a mold of Musashi's actual face! Authentic Musashi artifacts are a rarity, so even having just these items is impressive and in my opinion make it a worthwhile stop.
Entrance is 500 yen.
The Musashi Seika is the house where Musashi Miyamoto was raised when he was young. The Seika is unfortunately a reconstruction. It is supposed to resemble the original and there is a monument in front of it where the original house was. You can view it but visitors are not permitted to enter.
The Hirao house is actually more interesting than the Musashi Seika. It is Musashi's sister's house, so Musashi did come here, and this structure is actually the original. Interestingly, it is still resided in by Hirao's descendants so visitors can come and view the house but you cannot enter.
Mimasaka is served by the Chizu Line, which begins at Kamigori Station (in Hyogo Prefecture), crosses through Okayama Prefecture, including here in Mimasaka, and ends at Chizu Station in Tottori Prefecture.
Only two of the stations are located in Mimasaka: MiyamotoMusashi Station and Ohara Station. The Musashi sites are located around MiyamotoMusashi Station. Around Ohara Station is the historic Ohara street and a few other sites.
There is a 1000 yen unlimited pass that allows you to go anywhere along the Chizu Line on the Chizu Express trains. If you are going to MiyamotoMusashi Station and then back the other way from either direction, it will save you money (it costs 770 yen to get there from Kamigori Station, so going there and back so you'll save more than 500 yen and from Chizu Station to MiyamotoMusashi Station it costs 650 yen so you'll save 300 yen). If you go from one end to the other (Kamigori to/from Chizu), it will also pay off.