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Aso-Kuju National Park

Giant caldera, active volcano and highlands

Aso-Kuju National Park covers about 727 km² across Kumamoto and Oita prefectures and has been protected since 1934. Its centrepiece is the Aso caldera, roughly 25 km from north to south, with five central peaks and the active Nakadake crater. To the north the Kuju mountains rise to 1,791 m at Mt. Nakadake, the highest point on mainland Kyushu. Visitors can look into the crater when it's open, walk boardwalks through protected marshes and watch cattle graze on the grasslands. Allow at least a full day. A car makes the park far easier to cover and suits road trips across central Kyushu.

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National Park in Japan

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$$	Medium
$$$	Expensive, upscale
$$$+	Very expensive, luxury

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Safety: 7.5

General Safety:	8
Health & medical:	7
Accessibility:	4
Tap water:	9

Read details

2/5

English is spoken at most visitor centres, some hotels and tourist hotspots, but communication can be basic elsewhere. Signs and brochures often have English, but learning a few Japanese phrases will help.

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Last update: 21 Oct 2026

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Aso-Kuju National Park Summary

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Great for volcanic landscapes and outdoor adventures. Hike crater rims, drive scenic highland roads, explore grasslands and enjoy horseback riding and hot springs.

Place score

8.1

Best at:

Volcanoes

Spotless

Natural sites

Hot springs

Mountains

Personal score

Suited for

👶 7

Families

🧓 6

Seniors

❤️ 7

Couples

🛡️ 6

Travel Beginners

Japan – Quick facts

Guide Etiquette Holidays Other

Power Grid:	100 V, 50 Hz Plug: Type A Type A: Read about power adapters
Currency:	Japanese Yen (JPY) £1 ≈ JP¥210
Cashless info:	Rating 4/5 Cashless payments are becoming more common, especially in cities, with some shops still preferring cash. Be prepared for occasional cash-only situations in rural areas. Save with a travel credit card
eSIM providers:	Best value: Saily Flexibility: Airalo Read our in-depth comparison

Tipping:	Tipping is not customary in Japan and can be considered rude. Excellent service is the norm, and tipping is unnecessary in most places.
Public drinking:	Public drinking is legal and commonly accepted, particularly during festivals and events.
Public smoking:	Smoking is prohibited in indoor public places but allowed in designated outdoor areas. Some restaurants may have smoking sections.

New Year (January)	One of the most important holidays, expect crowded temples and high prices. Plan ahead.
Golden Week (April-May)	The busiest travel time, expect high demand for accommodation and transport.
Obon (August)	A time to honour ancestors, many businesses close, and transport can be crowded.

Emergency contact:	Emergency Number: 110 (Police), 119 (Fire & Ambulance)
Taxi apps:	Uber, JapanTaxi, DiDi
Other:	Japan is a country of respect, so understanding local customs and etiquette is important. Public transport is efficient, but can be crowded during peak hours.

Best times to travel

The best times to travel section shows how the months compare for a visit, so you can find the time of year that fits what you want to do.

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The people icon shows how busy the place usually is. The more people, the more crowded it gets.

Additional notes:
The grey info boxes point out special things worth knowing, like recurring weather issues or seasonal events.

for Aso-Kuju National Park, Japan

🌤️

Jan

🌤️

Feb

🌤️

Mar

🌤️

Apr

☀️

May

⛈️

Jun

⛈️

Jul

🌦️

Aug

🌤️

Sep

☀️

Oct

☀️

Nov

🌤️

Dec

High season:	May, Oct. - Nov.
Shoulder season:	March - April, June, Aug. - Sep.
Crowdedness:	5 (Moderate tourist numbers)

Tap on a month for more info Hover over a month for more info

Climate details

Mt. Aso crater rim access is often restricted due to volcanic gas or activity

Miyama Kirishima azaleas bloom on Kuju late May to early June

Winter snow and ice can close mountain roads and make hiking difficult, December to February

Don't miss

🌋 Peer into Mount Aso’s active volcanic crater and feel the heat
🥾 Hike the Kuju Mountains for sweeping views of lush valleys
🐎 Ride horseback across the grasslands of Kusasenri Plateau
🚰 Taste the fresh spring water directly from Shirakawa Spring
⛩️ Visit Aso Shrine, one of Japan’s oldest Shinto shrines

You've been here?

Why travel to Aso-Kuju National Park?

Mt. Nakadake in the Aso caldera is still active and its pale turquoise, acidic crater pool steams constantly when the crater is open. Around it the caldera is open grassland. Komezuka is an almost perfect cone about 80 m high while the Daikanbo lookout gives you a view of the five central peaks above the grasslands. The Aso Volcano Museum explains how the volcanoes formed. The Kuju mountains to the north suit hikers, with trails starting from Makinoto Pass and the Chojabaru Visitor Centre. Mt. Nakadake (Kuju) is the tallest peak you can hike here. Tadewara Marsh has boardwalks and is listed as a Ramsar wetland, with globe thistles and star lilies in summer. Komatsujigoku has steaming vents and sulphurous ponds where you can boil eggs. Mt. Yufu takes about two hours to climb and has views over Beppu and Yufuin. Aso also has horse riding, cycling tours and flights by hot air balloon or helicopter. Controlled grassland burns (noyaki) take place in late winter and the Aso Fire Festival follows in mid-March. Plan a full day for the caldera and a second day for the Kuju side. The crater is sometimes closed because of volcanic activity, so keep a backup plan for the grasslands and viewpoints.

🏯Places worth seeing

1 Aso Volcano Museum
2 Aso Shrine

🎡Places for activities

1 Komezuka

🏞️Natural landmarks

1 Nabe Falls
2 Tadewara Wetlands

🍽️Eat & Drink

1 Imakin Shokudo
Akaushi-don, a rice bowl topped with Japanese brown beef, at a family diner that has run for more than 100 years. The diner is in the Uchinomaki hot spring district and serves from morning until evening.
2 Aso Hanabishi
Fried cutlet of akaushi, Japanese brown beef, and beef rice bowls in a restaurant with Taisho-era decor on the shopping street near Aso Shrine. The restaurant does not accept reservations.
3 Nagomi Shokudo
Lava-grilled akaushi, Japanese brown beef, and Aso Milk Pork in casual set meals, paired with selected sake. Staff also keep a multilingual menu, and the restaurant is near Miyaji Station.
4 Tonkou
Tonkatsu, breaded pork cutlet, made only with Kumamoto Nagaiye pork, raised with strict feed control. The restaurant is in the hot spring town of Kurokawa Onsen and takes reservations only.
5 Yokayokatei Akaushi-kan Miyaji
Akaushi, Japanese brown beef, and other fresh meat at a restaurant run directly by a butcher shop. It is a 3-minute walk from Miyaji Station and can host groups of up to 150 people.

🎈Events

Hifuri Shinji Festival (Aso Shrine)
Aso Fire Festival (Noyaki Grass Burning)
Aso Volcano Marathon
Kusasenri Horse Festival
Kuju Rhododendron Festival
Beppu Hot Spring Festival
Yufuin Floral Festival
Taketa Bamboo Lantern Festival
Aso Caldera Cycling Event
Aso Autumn Leaves Viewing

Explore on map

Open map view

Knowledge before you go

Hire a car if you can, since buses are infrequent.
Crater and volcanic gas conditions change often, so ask at a visitor centre before driving up.
Allow a separate day for the Kuju side, because the drive from the caldera takes time.
Noyaki, the controlled grassland burning in late winter, has kept Aso's grasslands open for many centuries.

How to travel to Aso-Kuju National Park

Most visitors reach Aso via Kumamoto. Shinkansen trains from Hakata (Fukuoka) take about 35 to 50 minutes to Kumamoto Station. From there the Kyushu Odan limited express takes about 1 hour to Aso Station. The Kyushu Odan bus from the Kumamoto Kotsu Centre takes about 1 hour 30 minutes to Aso Station via Aso Kumamoto Airport (KMJ). From Oita the limited express takes about 1 hour 50 minutes to Aso Station and a bus about 2 hours. From Beppu the bus takes about 3 hours. Expressway buses from Fukuoka reach Kurokawa Onsen on the northern side in about 2 hours 15 minutes. Driving takes about 1 to 1.5 hours from Kumamoto city. A car is the easiest way to link the caldera with the Kuju mountains in one trip.

Access summary

From Kumamoto Airport: Airport bus or hire car toward Aso area, about 1–1.5 hours.
From Kumamoto City: JR train or bus to Aso, then local bus, roughly 2 hours.
From Fukuoka (Hakata): Highway bus or train to Aso/Yufuin region, usually 2.5–3 hours.

Check your route from anywhere

Where to stay in Aso-Kuju National Park

Visitors usually stay in hot spring inns, pensions and small hotels in the caldera or in a nearby onsen town. Aso Station and the Uchinomaki area have a range of ryokan and guesthouses. Minamiaso suits those exploring the southern rim. Kurokawa Onsen is a hot spring village north of the caldera with ryokan. Yufuin and Beppu on the Oita side have many more places to stay. Without a car, Kumamoto city is a practical base. Hotels there offer plenty of choice and the train to Aso Station takes about 1 hour. That adds travel time each day, so staying in the park suits early starts at the crater and the lookouts. Rooms in onsen towns fill up on autumn weekends and holidays, so book ahead for those dates.

Hotel recommendations

*by rating and popularity. Commissions have no influence on the rankings.

AMANEK Beppu YULA-RE

9.2

Beppu SUGINOI HOTEL ORIX HOTELS & RESORTS

9.1

Beppu Hatto Onyado Nono Beppu

9.5

KAMENOI HOTEL BEPPU

8.4

AMANE RESORT SEIKAI (SHIOSAI NO YADO SEIKAI)

9.2

Yufuin-bettei Itsuki Ryokan

9.2

Yufuin Baien

9.0

Yufuin Hotel Shuhokan

8.7

Yufuin Ubl Hotel

8.7

Uminohotel Hajime (ex Umikaoruyado Hotel Newmatsumi)

8.7

Explore more accommodations

How to get around Aso-Kuju National Park

The sights are spread across the caldera and the Kuju highlands, so a car is the best way to cover the park. Without one you can use trains and local buses to reach the main hubs.

Car:
Hire cars are available in Kumamoto and near the main stations. Bus services are thin outside the main hubs, so a car or a taxi is the practical choice if you want to reach Daikanbo or the crater on a tight schedule.

Trains and buses:
You can use the JR Hohi Line to reach Aso Station and then local buses. The Gurutto Bus serves Oguni, the Miyaji Loop Line serves Aso City and Yurutto serves Minamiaso. Together they connect hot springs, sights and museums.

Tours and bikes:
The Aso Regular Tourist Bus and the Aso Gallery Bus run twice daily on 3-hour tours. Electric-assist bicycles can be hired around Aso.

Food in Aso-Kuju National Park

Food in the Aso area centres on beef and local dairy products from the grasslands. Akaushi (red beef) from cattle grazing on the pasture is a regional favourite. Dagojiru is a Kumamoto soup of flat dumplings and vegetables. Kumamoto is also known for basashi (raw horse meat), which you'll see on menus at many izakaya.

Restaurants cluster around Aso Station and the main hot spring areas. Roadside stations (michi-no-eki) and cafes near the viewpoints sell snacks and ice cream. Choices are thin on the hiking trails, so carry a lunch if you plan a long walk in the Kuju mountains.

Budget snapshot

Costs compared to home

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-45 %

Daily expenses in the region are around 45% lower than the average across United States. That means you'll spend a lot less on meals and getting around.

Exchange rate trend

The exchange rate price factor shows how expensive or cheap a currency currently is compared to its historical average. It's a quick way to see if a country is currently more or less affordable due to exchange rate changes.

-20 %

Your exchange rate (GBP to JPY) is 20% better than in recent years. That means travelling now is considerably cheaper compared to the past.

Travel costs

To help you plan your trip, we provide estimated daily costs per person (when travelling as a pair) for different travel styles. These numbers give you an idea of what you might spend each day at this destination, including accommodation, food, transport and activities.

Additionally, we also provide average hotel costs for different travel styles to give you an estimate for the accommodation only.

Please note that these are only estimates. The real costs depend on booking times, season and other factors.

Daily cost summary

Travel style categories explained:

Backpacker:
Staying in hostels or budget hotels, cooking your own meals or eating cheap and choosing low-cost activities.

Mid-range:
Staying in mid-range hotels, eating at a mix of restaurants and casual spots and enjoying a variety of activities.

Luxury:
Staying in luxury hotels, dining out at high-end restaurants and enjoying premium experiences without worrying about the price.

	Backpacker	Mid-range	Luxury
💵 Total costs per day, including accommodation	£67	£145	£362
🏨 Accommodation per night, per person	£45	£105	£225
🍝 Food per day	£16	£32	£98
🚕 Transportation per day	£5	£8	£38

Food & Drink

🍽️ Restaurant Dinner, per person	£13
🍛 Lunch Set, per person	£4.60
🍟 Fast food combo	£3.70
🍝 Preparing your own food, per day	£6.50
☕ Cappuccino	£2.30
🍺 Beer in a restaurant, 0.5 l	£2.20

Transportation

🚌 Public transport ticket	£1.25
🚕 Taxi Ride, 10 km / 6 mi	£24
⛽ Petrol, 1 l	£0.80

Other

🎞️ Cinema ticket	£8
👩‍⚕️ Doctor's consult	£16
🤧 Cold medication	£6
💇 Basic haircut	£8

Safety information overview

General safety

The park is very safe with little crime, though the active Nakadake volcano is the main danger. Access to the crater is restricted at times and volcanic gas can be hazardous so follow closure signs. Mountain weather on the Kuju trails can change quickly.

Health & Medical

Medical care in Kumamoto city is good, but the park is rural and hospitals are some distance away. Sulphur gas near the crater can irritate the airways, so people with asthma or heart conditions are usually advised to avoid it. Travel insurance is worth having.

Accessibility

The viewpoints and visitor centres can be reached by road, which makes them workable for many visitors. Trails in the Kuju mountains and around the crater are steep and uneven. Tadewara Marsh has elevated boardwalks. Distances are long and public transport is limited.

Tap water

Tap water in the Aso area is safe to drink, like elsewhere in Japan. Mountain trails have few shops, so carry water on long hikes, especially in summer. Convenience stores and vending machines in the towns sell cold drinks. Restaurants usually serve free water.