Walked up a mountain in Tanzawa, an area of Kanagawa prefecture. Tou-no-dake is 1,491 m (4,891 ft) and walking up it was a perfect way of reminding myself that I am very unfit.
Walking up mountains is best done alone, regardless of any safety concerns you may have. I was walking in the afternoon so the mountain was deserted, allowing me to feel I was deep in the wilderness, even though I wasn't far from houses, roads and vending machines.
As I started making my way down the mountain the sun set. I had a couple of torches with me but chose not to use them. Walking down in the dark was quite difficult but very exciting. I could hear snakes slithering away from me and also Japanese mountain leeches dropping from the trees.
I think I'm pretty much hooked on mountain walking now, so expect more of the same in the future.