Home All Articles Nanyo Seiyo Event Izumidani Terraced Rice Fields and Fantastical Fireflies: Seiyo City's Lush Early Summer Nature Guide for June
Izumidani Terraced Rice Fields and Fantastical Fireflies: Seiyo City's Lush Early Summer Nature Guide for June
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Izumidani Terraced Rice Fields and Fantastical Fireflies: Seiyo City's Lush Early Summer Nature Guide for June

04.10.2026
📅 Event Calendar (Seiyo Area)
First Sunday of July
Okuiyo's Unique Festival: Doronko Matsuri (Mud Festival)
📅 Annually on the first Sunday of July
Mishima Shrine, Shirokawa Town
Okuiyo's Unique Festival
Spring, Autumn
Akeha Marche
📅 Regularly held in spring and autumn, etc.
Uwa Culture Hall, etc. (Varies by event)
Grand Marche
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Traditional Ritual, Unique Festival
Okuiyo's Unique Festival: Doronko Matsuri (Mud Festival)
A traditional ritual dating back to 1881 (Meiji 14), praying for a bountiful harvest and good health. Participants in white robes enter the sacred rice fields and humorously smear mud on each other, earning it the name 'Okuiyo's Unique Festival' and drawing laughter from spectators.
📅 Annually on the first Sunday of July 📍 Mishima Shrine, Shirokawa Town ↗ View Route on Google Maps
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Market, Flea Market
Akeha Marche
Seiyo City's largest market event, regularly held at Uwa Culture Hall and other venues. Numerous shops offering local gourmet food, food trucks, handmade goods, workshops, and more participate, providing a full day of fun for families.
📅 Regularly held in spring and autumn, etc. 📍 Uwa Culture Hall, etc. (Varies by event) ↗ View Route on Google Maps
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Spectacular Views / Nature
Shikoku Karst - Onogahara
[Nomura Town] One of Japan's three great karsts, spreading across the sky at an altitude of 1,400m. It's called 'Japan's Switzerland' due to the sight of grazing cows, and its rich milk soft-serve ice cream and scenic drives are popular all year round.
📅 All year round (caution for snow in winter) 📍 Nomura Town Onogahara ↗ View Route on Google Maps
📝 Information is current as of writing. Dates, contents, and fees are subject to change. Please check the official website before visiting.

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