Visit to wood workshop near Hakone

Hi, I have a three day Hakone Free Pass, traveling from Tokyo to Hakone Yumoto, staying in Gora for two nights. On the third day, I would like to visit a wood workshop at Ninomiya station on the Tokaido Main Line before returning. I presume that there are no Okakyu affiliated ways to get there and back? The cost is about 400 yen each way.

Why "about 400Y each"???

That Pass "free area(zone)" validity starts fr "Odawara" stn.
http://www.odakyu.jp/english/deels/freepass/hakone/
So you just pay 240Y/oneway (by cash or IC card "PASMO" or "Suica") each
for JR Tokaido main line(Not Odakyu as railway company) regular(Local) train
until (JR)Ninomiya stn and return if that workshop place close fr JR stn.
https://goo.gl/maps/8gdmvGLCkgt
(Change dep date and time)

Thank you very much for the reply and help. I must have chosen a more expensive route or the wrong route to reach 400 yen. I can see now that it is 240.