Mt Shazan (1826m), Nikko City, Tochigi Prefecture

This was my 8th hike in the Oku-Nikko or “deep Nikko” area (not counting several cross-country skiing trips). It’s one of my favourite places because of the easy public transport access, well-maintained trails, beautiful nature and, if the weather cooperates, breathtaking views. When I climbed Mt Hangetsu in 2018, I discovered a bus line that ended just below the summit, and I hoped to use it for another hike someday. Starting from there, I would be able to reach the next peak in a couple of hours, and then make my way back to Chuzenji Onsen via the lake. In theory it looked doable; in practice, due to the tight bus schedule, I had less than 5 hours to complete the hike. Also, rain was forecast in the afternoon, so I hoped I would be able to make it to the summit, and the views, before the clouds rolled in.

Hiking in Oku-Nikko 奥日光

I arrived at Tobu-Nikko station around 9h30, and caught the bus for Yumoto Onsen; as I had hoped, it was more than half empty on a weekday. I got off at Chuzenji Onsen, where I had to wait about thirty minutes for the bus for Hangetsu 半月, a seasonal bus running only a few months of the year. This time, I was the only passenger. It followed a thrilling road up the side of the mountain, with great views of the mountains South of the lake, and ended at a parking area next to a grassy park, on the shoulder of the mountain. Looking back at it during the hike, it reminded of an Inca terrace (see top photo).

Today’s mountain was the triangular peak in the center

Good trail at the start of the hike

I got off the bus and admired the view for a while. The mountains ridges spread in every direction, with no signs of civilisation in the deep valleys.  I finally set off at 11h30. The start of the trail was easy to walk, alternating level and climbing sections. I soon reached the observation platform below Mt Hangetsu, with a view of Chuzenji lake and Mt Nantai to the North. Since I had been there before, I moved on quickly. The trail continued via a series of tight switchbacks down a steep grassy slope with few trees and great views South and West; the sky was full of big puffy cumulus clouds, the biggest one sitting on top of Mt Nantai!

Summer is the time of Cumulus clouds

Despite all the clouds, the weather remained good

At noon, I reached Hangetsu Pass, where on my previous hike I had turned right, down to the lake; this time I continued straight. After a short climb, I reached the minor peak of Mt Chuzenji 中禅寺山 (1650m) in the middle of the trees. Next was a pleasant half an hour descent through a larch tree forest to Asegata Pass 阿世峠.  I had an early lunch before starting the last big climb of the day. So far the weather was holding, and although it felt hot in the sun, it was pleasantly cool in the shade. On the way up, I passed a couple of good viewpoints of Lake Chuzenji, before reaching a steep, but short, climb through some birch trees.

There is a hiking path following the top of the entire ridge

Climbing through the birch trees, called “kaba” in Japanese

The trees thinned, and I soon emerged onto a grassy rocky slope. Here, I had some of the best views of the day, I stopped every few meters to take photos. On my left, the lower ridges dropped away, giving the impression of being at the top of the world; on my right, the highest mountains of the Nikko National Park loomed above me, their peaks lost in the clouds, giving the impression of being at the edge of a hidden kingdom. I felt grateful that I could do such an amazing hike as a day trip from Tokyo.

The landscape tumbling downwards to the South

Getting close to the top

Shortly before 2pm, I reached the top of Mt Shazan (社山 shazan also read as yashiroyama). Although it’s a steep climb, the altitude difference is only 400 meters, so it didn’t required too much of an effort. Big grey clouds were hovering overhead, and a downpour felt imminent. I popped through some trees past the summit to have a quick look at the next part of the trail, and surprised a deer on the other side; it bounced away before I could get a picture. I saw that the trail continued up and down following the ridge around Chuzenji lake, the highest parts hidden by the slowly approaching mist. I quickly had the rest of my lunch, and headed down the way I had come up.

Mt Nantai, nearly clear of clouds, from the shore of Chuzenji Lake

The Chuzenji lake “Shukaisen” path that goes round the lake

As I hurried down, the clouds retreated and the sun returned. It took me less than a hour to reach the lake shore. From there it was another hour of walking along a pleasant forest path to the end of the hike. The path was peaceful and easy to walk. It’s possible to hike around the lake, and I hope to do this in the future. At 4pm, I was back at Chuzenji Onsen, and I just had time for a quick hot spring bath at Nikko Sansui before catching the bus back to Tobu-Nikko station.

I was glad that this hike could be done in less than 5 hours, although it required some fast walking at the end. The weather forecast turned out to be wrong, a good thing for once!

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