This is a nice place to spend a few hours. But its something to do on the way somewhere or in combination with something else. You need a car to get here.
There are some traditional style Japanese houses with thatched roofs and wooden floors that are rather nice. There is no entry fee. And the surroundings are quite beautiful. There is a little soba restaurant there where you can eat. You could have a picnic there too but there are no tables.
Behind the houses are some hills and there are some tracks that you can walk up. At the top of the hill is a good playground. The path continues beyond the playground and eventually goes down the hill and joins the road not far from the car park. All up its probably a bit over an hours walk. We couldn't see any more extensive paths.