There are places that earn their reputation quietly, over centuries, through the sheer accumulation of what they are. Yakushima is one of them. A small island off the southern tip of Kagoshima Prefecture — roughly 500 square kilometres of granite peaks rising nearly 2,000 metres from a subtropical sea — it contains trees that were already ancient when the Edo Period began, a forest so particular that it anchored Hayao Miyazaki's imagination when he made Princess Mononoke, and a quality of stillness that urban Japan rarely offers.

This is a full edit, and a reintroduction to the island. I first wrote about Yakushima back in 2020, when the world was navigating something else entirely. It deserves more than that original treatment — more detail, more honesty about what arriving here requires, and a proper account of where to sleep once you do.

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About Yakushima

Yakushima Airport — one of the more scenic domestic arrivals in Japan. There's just something lovely about small domestic airports.

Yakushima sits approximately 100km south of Kagoshima City, a circular island of around 504 square kilometres that the locals sometimes call the Alps of the Ocean. The peaks here — Miyanoura-dake at 1,936m is the highest in Kyushu — generate extraordinary rainfall, which is why the forests look the way they do: an uninterrupted carpet of moss over every surface, rivers running everywhere, air that carries actual weight. It has the highest recorded annual rainfall in Japan.

In 1993, Yakushima became one of Japan's first two UNESCO World Natural Heritage Sites. UNESCO cited it as the best example of biodiversity in East Asia — an ecosystem that spans subtropical coast to sub-alpine summit within a single island, a range that makes it simultaneously the northern limit for some species and the southern limit for others. The boundary line is called the Watase Line, and crossing it while hiking is one of the quieter wonders of the island.

The trees that make Yakushima singular are the yakusugi — a word that combines Yakushima and sugi (Japanese cedar). By convention, any cedar on the island over 1,000 years old earns that name. Below that threshold, they're simply kosugi, small cedars, though many of those are already centuries old. What the ancient trees share is a quality of presence that photographs do not fully communicate. You need to stand next to one.

The island is also home to its own subspecies of Yaku deer and Yaku macaque monkeys — animals that outnumber the human population, which stands at around 12,000. Both wander the hiking trails without particular concern for your schedule.

What to See

Jomonsugi — the Oldest Living Cedar

Jomonsugi — scientists estimate its age somewhere between 2,000 and 7,200 years.

Jomonsugi is the headline attraction and deserves to be. Scientists estimate the tree's age somewhere between 2,000 and 7,200 years — the ambiguity is real; dating ancient cedars is not straightforward — making it likely the oldest living tree in Japan and possibly one of the oldest on earth. It is not especially tall at around 25 metres, but the trunk diameter of roughly 5 metres, and the knotted, accumulative mass of it, communicate something that height alone does not.

The tree was probably known to Edo-period loggers who mapped the forest — and survived precisely because its irregular shape made it unsuitable for timber. It was rediscovered in the 1960s, and the wave of attention that followed helped build the case for Yakushima's eventual protection as a national park and later a UNESCO site.

Reaching it requires a full-day hike: approximately 22km round-trip along old logging railway tracks, taking 8 to 10 hours. The trail is well-marked. The bridges are occasionally narrow and without railings, and the humidity makes them slippery. Start very early — the shuttle buses from Yakusugi Land depart from around 5am during peak season, and the mountain access road is closed to private vehicles during busy periods.

Shiratani Unsuikyo — The Mononoke Forest

Shiratani Unsuikyo — the valley credited as Miyazaki's inspiration for Princess Mononoke.

Shiratani Unsuikyo is, for many visitors, the more emotionally affecting experience. A forested ravine in the island's north, it requires no 22km commitment — the trail network ranges from one to five hours depending on the route you choose, all well-maintained and signposted in English. What it offers is the full visual vocabulary of Yakushima's famous ancient forest: moss over every surface, roots that have been growing around boulders for centuries, light that arrives softened and green through the canopy.

It is widely cited as the landscape that inspired the spirit forests of Princess Mononoke, and once you're inside it, the connection is obvious. The film's visual logic is here, not as metaphor but as actual place. Studio Ghibli has never officially confirmed or denied the specific connection, which has somehow only reinforced it.

For those unable to commit to the Jomonsugi hike, Shiratani Unsuikyo is the recommended alternative. For those doing both, do them on separate days.

Hirauchi Kaichu Onsen — The Tidal Hot Spring

The coastal scenery near Hirauchi Kaichu Onsen — only accessible at low tide.

Yakushima is not a volcanic island, but it is geothermally active enough to produce several natural hot springs along its coast. Hirauchi Kaichu Onsen is the most extraordinary of them: a rocky tidal pool on the southern shore that becomes an onsen only when the tide is low enough to expose it. Check the tide charts before you go, and plan your visit accordingly — typically accessible two hours either side of low tide.

It is mixed-gender, clothing is not permitted (a sign says so explicitly, though a clean towel or sarong is generally accepted), and you may share it with elderly locals, other travellers, or no one at all depending on timing. The view at sunset — ocean in every direction, the air cooling as the sky changes — makes a convincing case for why people return to this island more than once.

Yakushima's Beaches and Stargazing

The night sky over Yakushima — one of Japan's finest stargazing islands.

Between May and August, Yakushima's beaches see loggerhead and green sea turtles come ashore to lay eggs at night — one of Japan's more remarkable wildlife experiences, accessible via guided night tours that are organised carefully to avoid disturbing the animals. Nagata Inaka-hama beach on the northwest coast is the most active site.

And then there is the sky. Yakushima's combination of low population density, minimal light pollution, and clean air makes it one of Japan's premier stargazing locations. The Wilson Tree meadow — an open space near the famous hollow stump that loggers used as a rest shelter during the Edo period — is a particularly good vantage point on clear nights. The photograph above was taken from the island's coast, and it is exactly what it looks like.

Wilson Tree — The Cedar That Became a Room

Wilson Tree — look up through the opening and you'll find a heart-shaped hole in the sky.

The Wilson Tree is a felled yakusugi stump of such dimensions that you can walk inside it. The interior contains a small Shinto shrine, a freshwater spring, and a hollow large enough for a group of people to stand comfortably beneath the open sky above. It was reportedly felled during the Edo period on the orders of Toyotomi Hideyoshi for the construction of Kyoto's Fushimi Momoyama Castle. Ernest Henry Wilson, the British botanist who documented it in 1914, gave it his name, which has stuck.

The photograph above shows the view from inside — and if you position yourself just right and look up, the gap in the canopy forms a perfect heart shape against the sky. It is charming in the most honest way: a giant tree, several thousand years old, accidentally making a heart. Worth the photo.

Activities on the Island

Where to Stay

Accommodation on Yakushima spans a wider range than the island's size might suggest — from the island's sole internationally regarded luxury resort down to family-run minshuku where your host likely grew up here and has opinions about the best trail conditions. The main town is Miyanoura in the north, where the ferry port is. Anbo on the east coast is a secondary hub. Accommodation around the Onoaida and Hirauchi areas in the south puts you closest to the tidal onsen and offers a quieter base.

Trip.com link for all Yakushima City accommodation: Browse via Trip.com →

Luxury Mid-Range — Ryokan & Hotel Budget — Guesthouses & Homestays

Yakushima's budget accommodation is genuinely good. The island's minshuku and homestays are typically run by people who have lived here their whole lives — which means hosts who know the trails, can tell you about the weather, and often include home-cooked meals in the rate. A step closer to the island than any hotel.

Getting to Yakushima

By Air	Japan Airlines operates flights to Yakushima Airport (KUM) from Kagoshima (KOJ, ~35 min), Fukuoka (FUK, ~70 min), and Osaka Itami (ITM, ~90 min). The airport is small — arrival is one of the more charming in Japan — and is located in the north of the island near Miyanoura.
Toppy / Rocket (Jetfoil)	The high-speed jetfoil from Kagoshima Port takes approximately 2 hours to Miyanoura and is the most popular access route. Booking in advance is strongly recommended during peak season (spring and summer). Rough sea conditions occasionally cause cancellations — build flexibility into your itinerary.
Yakushima 2 (Ferry)	The budget ferry option runs approximately 4 hours from Kagoshima Port. Cheaper and more tolerant of mild sea conditions than the jetfoil. Less convenient for tight schedules.
From Tokyo / Osaka	Fly to Kagoshima and connect onward by air or ferry. Shinkansen to Kagoshima-Chuo is an option from Osaka (approximately 90 minutes on the Sakura express). Allow a full travel day from Tokyo regardless of route.

Getting Around the Island

Car Rental	By far the most practical option. The island's main road is a coastal circuit of approximately 130km, and a rental car gives you complete freedom over timing — particularly important for tidal attractions like Hirauchi Onsen and dawn hiking departures. An International Driving Permit (IDP) is required for non-Japanese licence holders. Book well in advance during peak season.
Buses	Public buses serve the main coastal road and connect the major attractions, but the schedule is infrequent — gaps of two hours between services are common. Manageable for a focused itinerary, genuinely inconvenient for spontaneous movement. Check timetables before each journey.
Taxis	Available, and considerably more expensive than mainland Japan given the island's limited competition. Use for emergency gaps in the bus schedule or airport transfers, not as a primary transport strategy.
Hiking shuttles	During peak season, the road to Arakawa Trailhead (for Jomonsugi) is closed to private vehicles. Shuttle buses operate from Yakusugi Land car park, departing from approximately 5am. Timing and ticket arrangements should be confirmed with your accommodation before you arrive.
Cycling	Possible along the flatter coastal sections. The interior and mountain roads involve significant elevation. Bicycle rental is available in Miyanoura.

Weather & Best Time to Visit

A note before the breakdown: Yakushima holds Japan's record for annual rainfall. The coastal areas receive around 3,000mm a year; the mountain interior receives closer to 10,000mm. For context, the notoriously wet UK averages 2,000–3,000mm. The phrase "it rains every day" circulates online and is misleading — what is true is that when it rains here, it rains with conviction. Clear days are real, sunshine is real, and the coast can be bright while the mountain interior is deep in cloud. The same island, twenty minutes apart, can be entirely different weather.

The island effectively has six seasons rather than four. Here is an honest account of each.

Questions

Yakushima does not need to be introduced to the trees — they have been here far longer than any of us. What it needs is visitors who arrive with the right degree of patience. The forest gives more to those who slow down inside it.

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