Kumamoto Prefecture

Mount Aso

Japan's Largest Active Volcano & Infinite Caldera

Travel time: 1.5h from Kumamoto by bus

Best time: May–June, October–November

About Mount Aso

Mt. Aso's outer caldera is so vast it contains an entire inhabited town of 50,000 people. Hike the smouldering Nakadake crater rim, gallop across Kusasenri's grassy plains, and end the day soaking in Kurokawa Onsen — Japan's most atmospheric hot spring village.

Top Highlights

Nakadake active crater rim
Kusasenri grassland plateau
Daikanbo panoramic lookout
Aso Volcano Museum
Kurokawa Onsen village

Getting There

Mount Aso is well connected to the rest of Kyushu by the JR network. From Fukuoka (Hakata station), 1.5h from kumamoto by bus. A JR Kyushu Rail Pass will cover this journey and is the most cost-effective option for visitors spending more than 3 days on the island.

When to Visit Mount Aso

The best time to visit Mount Aso is May–June, October–November. Spring (late March to May) brings cherry blossoms and mild temperatures, while autumn (October to November) offers spectacular foliage. Summer is hot and humid, and July–September can see typhoons. Winter is mild compared to Honshu and can be a great time to enjoy hot springs.

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Book Tours & Activities in Mount Aso

Day tours, cooking classes, cultural experiences and more in Mount Aso.

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