I’ve been on a number of “romantic” (scenic) railways in various parts of Japan. All tend to have one or more isolated scenic stops where you can get off, wander around, take photos, etc., while the train waits for a few minutes. This one just has a bit more infrastructure.
The third rail doesn’t provide electricity, it is there to support freight and passenger trains running on different track gauges (widths). The trains on that line are all diesel powered.
