Mount Unzen: How to Visit and Explore Japan’s Deadliest Volcano

The active Mount Unzen volcano sits at the center of Nagasaki’s Shimabara Peninsula. It is known as the deadliest volcano in Japan because of its multiple eruptions over the last few centuries, which has claimed many lives. The mountain, along with its breathtakingly beautiful surroundings, was made part of the Unzen Amakusa National Park in 1934. Unzen has since drawn many visitors who come to enjoy the views, hiking trails, onsens, and many other attractions which we will discuss here.

  • Mount Unzen ropeway
  • Hike up Mount Unzen
  • Explore Unzen Jigoku
  • Visit the Heisei Shinzan Nature Center
    • Soak in the onsens
    • Play a round of golf
    • Visit Shimabara Castle Town
  • History of eruptions
  • Best time to visit


In this video Shiso Productions shows the beautiful scenery in and around the majestic Mount Unzen. The footage is owned and created by Shiso Productions.


Things to see and do by Mount Unzen

A view of Mount Unzen on the horizon.

Paul Evans – User: (WT-shared) Snave at wts wikivoyage, MtUnzen, Cropped, CC0 1.0

The multi-million-year-old Mount Unzen is not one, but rather a group of several overlapping strato-volcanoes. The two main peaks are Heisei-shinzan (1486 meters) and Fugendake (1359 meters) – and both summits are reachable through hiking.

So why would someone want to visit such a dangerous place? Well, as it turns out, there are several good reasons, if you are brave enough.

Use the Mount Unzen ropeway

Want to enjoy the spectacular views from the top without doing the actual hike? If so, you will be glad to know that there is a lower and upper ropeway station on the Fugendake section.

The first ropeway station (Nita pass station), which sits at the height of 1,100 meters, can be reached by either hiking or traveling along the Nita-toge Pass.

The second one (Myokendake station) sits 200 meters higher at 1,300 meters. The Unzen Ropeway won’t take you to the top. To reach the peak from Myokendake station will require an additional 1 hour-long hike.

Each ropeway station has observation decks that beautiful views. The lower station has a parking lot and various stores from where you can buy food and drinks.

Hike up Mount Unzen

There are a number of options for those who choose to hike Mount Unzen. The longest route starts from Shimabara Town at the eastern base of the mountain, and the full day hike requires you to first walk through the entire town. A shorter option is by taking a bus to Unzen Town from where you can start the actual hike. From there, it will take about 3 hours to reach the summit.

The easiest and quickest way to reach the highest peak: Travel along the Nita-toge Pass to the lower Nita Pass ropeway station. It’s a toll road that will cost around ¥100 ($1.00). Once there, ride the ropeway to the Myokendake station from where it will be an easy short 1-hour hike to the Fugendake Summit. It sits at 1,359 meters above sea level and is the highest peak that you can reach.

All hiking trails are clearly marked and have safety zones in the unlikely event of a volcanic eruption. Also, camping is prohibited, but it’s tolerated next to the parking area of the golf course.

Download a map of each hiking trail from the unzen.org website.

Explore Unzen Jigoku

The word Unzen Jigoku translates to ‘Unzen Hell,’ and the name is very fitting. A walkway will lead you through a hellish looking landscape dotted with boiling springs while the strong stench of sulfur and steam fills the air.

Criminals were regularly brought here centuries ago, where they were tortured and killed by throwing them into these hot springs. During the Edo Period, when Christianity in Japan was illegal, 26 Christians were bought here to suffer the same fate.

Learn about Unzen at the Heisei Shinzan Nature Center

The Heisei Shinzan Nature Center sits near the base of Mount Unzen and is a beautiful little museum that provides information about the volcano. The easiest way to reach it is from the nearby Shimabara City. Also, several short and easy walking trails around the nature center will lead you to various viewpoints of Mount Unzen.

Play golf next to Japan’s deadliest volcano

It’s a known fact that playing golf during a thunderstorm could cost you your life, but playing a round at the Unzen Golf Course brings about a whole different element of danger.

The golf course, which has been here since 1913, can be found to the southwest of the volcano. It also happens to be the oldest golf course in Japan. Visit their website here‘Website is in Japanese only’.

Soak in the onsens

There are around 30 acidic sulfur onsens scattered around Mount Unzen. The most popular being a hot spring resort that sits on the southwest side of the mountain. Learn more about these hot spring resorts.

Caution: It’s important only to use designated onsens because some are far too hot and can cause serious injury or even death.

Visit the Shimabara Castle Town

Shimabara is a small, historically rich town that sits at the base of Mount Unzen. It was once the home of the Matsudaira samurai family, and the ruins of their castle can be found here. The town is also where the Shimabara Rebellion took place, and it suffered significant damages and loss of life during the 1792 volcanic eruption.

Shimabara serves as the ideal base for those who wish to explore Mount Unzen. Read more about this beautiful historic town here.


History of eruptions

Two eruptions stand out in Mount Unzen’s history – the major 1792 and smaller 1991-1993 incidents.

On the night of March 21, 1792, the single worst volcanic eruption in Japanese history took place. Mount Unzen’s Mayuyama dome blew off and landed in the ocean, causing a 100-meter tall mega-tsunami. The wave hit the Higo Prefecture coastline only to bounce off and return to cause further devastation to Shimabara. The mudslide from the initial eruption combined with the tsunami destruction along the two coasts resulted in the death of 15,000 people.

The second was a series of events occurring between 1990 – 1995. The most fatal incident took place in 1991 when a group of scientists and some of their drivers were caught off guard during an eruption and cost them their lives. A total of 43 people died.

What makes Mount Unzen, so particularly dangerous is the vast amounts of people who live so close to the volcano. But fortunately, no incidents occurred since 1995 even though the volcano is still active.


The best time to visit Mount Unzen

Each season brings something unique to the region, so there is no bad time to visit Mount Unzen – except for in the case of an eruption, of course.

  • Visiting in Winter: The winters aren’t as cold as other parts of Japan due to the region’s sub-tropical location. Furthermore, you will appreciate and enjoy the hot springs so much more in colder weather.
  • Visiting in Spring / Summer: Nagasaki gets unbearably hot during Summer, but this is when the mountain becomes a popular destination for locals thanks to the cooler temperatures at its higher elevations. The most beautiful pink Azaleas bloom across the mountain during Spring while the Summer brings lots of greenery.
  • Visiting in Autumn: If you visit here during Autumn, you will be in for a treat because Unzen is one of the best Autumn color spots in Kyushu. The mountain slopes become extra beautiful with its bright orange colors, so visiting during this period will provide plentiful photo opportunities.


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Further reading

Find out more about this wonderful Nagasaki tourist destination and its surrounding areas from the official Unzen Tourist Association website.

The Mount Unzen ropeway has its own website. Find out about its history, how to access the stations and much more at unzen-ropeway.com.