Lake Chūzenji

Lake Chūzenji, Japan

Sunrise light touches Mount Nantai above the still waters of Lake Chūzenji, framed by frosted reeds.

Lake Chūzenji offers a cool, mountain-ringed lake below Mount Nantai, an easy escape from the heat and crowds of Tokyo.

The place

Lake Chūzenji sits in the mountains above the town of Nikkō, inside Nikkō National Park in Tochigi Prefecture, at an elevation of about 1,269 metres. The lake is landslide-dammed, formed roughly 20,000 years ago when an eruption of Mount Nantai, which rises to 2,484 m, blocked a river valley. Water from the Yukawa River feeds it, and the outflow tumbles over Kegon Falls on its way down the mountain. Locals sometimes call it the Sea of Happiness, a name that suits a broad blue lake with forested slopes on every side.

The lake covers about 11.6 square kilometres and has a shoreline of roughly 25 km. It is deep, reaching about 163 m at its deepest point. That depth keeps the water cool through the summer, which is why the area became a retreat from the lowland heat. In the Meiji and early Shōwa periods, several European embassies built summer houses on its shores, and a few of these villas survive as places to visit.

The lakeside works best as a base for slow days rather than a single stop. Walks run along the shoreline, birdwatching is good in warmer months, and trails climb the surrounding mountains for anyone willing to walk. Winter brings snow, skiing and skating, and the lake is often edged in white.

Most visitors come only as a day trip from Tokyo and never reach the lake at all. The wider city of Nikkō covers much of Tochigi, and the mountains beyond the lake hold hot springs and quieter walking country that repay a longer stay.

Its story

The story of Lake Chūzenji begins with a mountain that was considered too sacred for ordinary visits. Mount Nantai was the centre of mountain faith long before the lake had a name. The monk Shōdō is credited with reaching its summit in 782, the event that brought Buddhism to the Nikkō area. Shrines and halls grew up around the peak, and the mountain stayed closed to women, horses and cattle until 1872, a restriction that shaped who could take part in its pilgrimages for generations.

The lake itself is a younger part of the picture, a product of geology rather than religion. Debris from the eruption blocked the river, and the water rose behind it until the valley filled. A river valley became a broad lake that people could reach from the shrine town below.

Its modern history turned on the arrival of foreign diplomats. When Western embassies in Japan looked for a summer escape from the lowland heat, the cool water and forested shore offered an answer. Several built vacation houses around the lake. The British diplomat Ernest Satow made it a regular summer haunt and built a house there, which the British Embassy used as a villa for well over a century. Today the former British and Italian villas are open to visitors as memorial parks, a reminder of that lakeside colony.

The shrines of Nikkō and the lake above them now draw walkers rather than devotees. The layers of the place, sacred mountain, geological accident and diplomatic summer retreat, can all be traced on a single walk along the shore.

What to see

Culture

Shrines and temples around Lake Chūzenji are working places of worship, so visitors should keep their voices low and stay out of the way of people praying. Halls and shrine precincts call for quiet behaviour, and people step aside from the centre of paths and avoid climbing on stone or wooden structures. Many halls ask visitors to remove their shoes before stepping onto a raised wooden floor, so look for the step and the slippers left beside it.

Photography is widely allowed outdoors, but ask before photographing people working at shrines or in lakeside shops, and do not use flash where it is forbidden inside halls. The former embassy villas are now memorial parks open to visitors for a ¥300 admission that includes a self-guided tour and tea service, so keep to the marked paths and respect the boundaries. Tipping is not expected at restaurants or on buses. Queues for buses and boats form in neat lines, and passengers board in turn.

Mornings are quieter at the busy spots, and the hiking trails are calmer at the start of the day. Keep phone calls brief and quiet on trains and buses, and take your rubbish with you on the trails.

Take off your shoes where a step marks the start of a hall and slippers are waiting, and keep to the rule even when others seem not to.

What to wear

Traditional dress around Lake Chūzenji follows the wider Japanese tradition of the kimono, a T-shaped robe of silk worn wrapped and tied with an obi sash. Formal silk kimono are woven or dyed, while the cotton yukata is the lighter summer version worn for evenings and after a bath at a hot spring. Kimono still appear at festivals and formal shrine occasions, though many visitors who wear one rent it for the day.

What people wear now is everyday dress: jackets, jeans, knitwear and practical shoes. The mountain air is cool even in summer, so locals keep a coat handy for the evenings.

For a visit, dress in layers. The lake sits high, so summer days can be warm while evenings and autumn mornings turn cool, and winter brings snow. Wear sturdy walking shoes for hillside paths and stone steps, and footwear that slips on and off if you expect to remove shoes at temples. Modest clothing suits the shrines, and covering the shoulders is a sensible choice at formal sites. Skip sandals and running wear at the better restaurants, since some wagyu places ask for smarter footwear.

What to eat

Plan it

Best time. Late April to May for spring blossom and fresh green, and late October to November for autumn leaves. Winter brings snow and the Snow and Ice Festival, but walks can be cold and icy. July and August are the hottest months, while July to September are the wettest, so summer is humid, though the lake's height keeps it cooler than the plains.

How long. 2–3

Getting there. Fly into Tokyo, then take a Tōbu limited express from Asakusa Station to Nikkō, about 2 hours. Trains arrive at Nikkō or Tōbu-Nikkō station, roughly 2 km from the main shrines. The lake lies above the town, so onward road transport is needed; check the official Nikkō site for current bus times.

Budget. mid

Tips

Etiquette

Nearby

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