Mount Naka

What it is

• An active volcano standing 1,506 meters high within the Aso Five Peaks.
• A geological site composed primarily of basaltic andesite rock.
• The location of the Aso Special Regional Meteorological Observatory.
• A site containing seven distinct craters with a history of frequent eruptions.

What to see

• The first crater which has remained active for over eighty years.
• A turquoise acidic crater lake known as Yudamari.
• Volcanic landscapes shaped by short-term eruptions occurring every few years.
• Panoramic views of the surrounding Kumamoto Prefecture mountain range.

When to go

• Check local alerts as volcanic gases often cause entry restrictions.
• Avoid the area during major eruption cycles every ten to twenty years.

Notes written by Japan Gems from facts in Japanese Wikipedia.