Shin-Hotaka Ropeway Nature Trail

Hi folks,

In mid-May this year, we will be visiting the Shin-hotaka Ropeway in Okuhida area. On the way down from the Observation Deck, we are planning to stop at Nabedaira Kogen station (one of the two ropeway stations) then hike down through the nature trail back to Nakaokogen Guchi bus stop. The goal is to reach Suimeikan Karukaya ryokan to try the onsen there as non-stayer guests.

Questions:
1. I read from an archived TripAdvisor forum that there is an Alps Bridge along the Nature Trail. Is this true and can anyone point out to where I can find the map online?
2. Does anyone know how long and what is the route of this Nature Trail that connects to the bus stop near Karukaya?
3. Would you recommend doing this trail vs. visiting the Kappa Bridge in Kamikochi?

Much appreciated,
Ronald