Ide (井手町)
ゲンジボタルの生息する南谷川
There is supposed to be a K200 post nearby (according to the official site and a spreadsheet I received from Kyoto prefecture), but we could not find it. That said, walking along the river was very pleasant. A bit too early for fireflies though.
龍王の滝
No signpost, but a fantastic waterfall. A bit slippery getting down to it. Well-maintained paths nearby for climbing up to a superb viewpoint.
高神社
Great shrine, clearly supported by the local community. K200 sign was super easy to find.