The Okunoin on Mount Wakasugi is in a cave just below the summit. It is here that Kukai, later known as Kobo daishi, practised austerities on his return from China.
Considering its remote location, a surprising number of people make the climb, though I suspect most have parked their cars at the Kannon-do just below.
there were many statues around the area including a Fudo Myo (it was Kukai who introduced this deity into Japan) and a Kurikara, the dragon sword of Fudo.
The Okunoin is on the south side of the peak and so all the snow had melted, but just above there was still snow...