http://ichibata.jp/english/e-index.htm
Only those photos on the ENglish page :( http://ichibata.jp/
Other travel websites (in Japanese) state:
From Matsue, you could go find the Matsue Onsen station of the Ichibata Railway's Kita-Matsue Line (across the river from JR Matsue station - maybe take a taxi), then take that line to Ichibata-guchi station (about 30 minutes ride). FRom there, take the local bus to Ichibata Yakushi (bus ride about 12 minutes).
From Matsue you could take JR San'in line to Izumo-shi and catch the above railway in the opposite directio to Ichibata-guchi station, but that gets to be a detour.