Yui-Shiori
Cool Cave Exploration of Asia's Largest-Scale Stalactite Cave
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Cool Cave Exploration of Asia's Largest-Scale Stalactite Cave

About this spot

A stalactite cave of Asia's finest scale designated as a Special National Natural Monument. The cave maintains a year-round temperature of around 17°C, making it comfortable even in midsummer. The natural formations created over long ages—such as the Hundred Plate formations and the Golden Pillar—are breathtaking, and well-maintained walking trails make it accessible for families. Start your day by experiencing the mystery of nature before heading toward the evening fireworks.

Fireworks details

Name: 秋吉台観光まつり花火大会

Date & time: 9/5 (Sat) Time TBA

Venue: 美祢市 秋吉台

2026年9月5日(土)開催、秋吉台の観光まつりを締めくくる花火大会です。日本最大級のカルスト台地を舞台に、遮るもののない広い夜空へ花火が打ち上がります。打ち上げ数は公表されていませんが、草原の開けた地形ならではのスケール感で、都会の花火大会とはひと味違う迫力を楽しめます。鍾乳洞や草原散策の余韻とともに、夜のひとときを味わいましょう。

Tips

荒天時は中止や延期の可能性があるため、当日は主催者の発表を確認しましょう。9月とはいえ夜の台地は涼しく感じることがあるので羽織ものを忘れずに。終了後は駐車場が混み合うため、時間に余裕を持って移動を。

Food stalls

Where: 会場内「秋吉台市場」(飲食・物販ブース)

美祢市観光協会公式サイトに『第48回秋吉台観光まつり花火大会 秋吉台市場 出店者募集!』の告知(2026-07-09掲載)。会場内で飲食・物販の出店あり. Stall lineups change year to year. Please check the official site for the latest details.

Turn this into a day plan with stall time included
Source: hanabi.cloud

Tips

About a 10-minute walk from Akiyoshi Plateau Bus Center. The cave floor may be wet in places, so non-slip shoes are recommended. Even in summer the cave is cool, so bringing a light jacket is reassuring.

Best time to visit

Approximately 1 hour 30 minutes required. The cool cave is perfect for escaping the heat during hot daytime hours.

Access & map

〒754-0511 Akiyoshi-cho, Mine City, Yamaguchi Prefecture 3506−2

Visit official website

Model course featuring this spot

2026 Akiyoshi Plateau Sightseeing Festival Fireworks Grand Event - Full Day Course

Yamaguchi

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