Ohara Hadaka Festival

Festival highlights

The biggest highlight is Shiobumi, held on the first day at Ohara Beach.

More than 10 mikoshi enter the sea at once, jostling as they race through the water and are lifted up by their bearers.

Another major highlight is the Daibetsurei ceremony. At dusk, the mikoshi gather at Ohara Elementary School and are raised high at the signal of fireworks as bearers bid farewell with festival songs.

Source: 大原はだか祭り／大原海水浴場・大原小学校・大原中央商店街｜イベント｜千葉県公式観光サイト ちば観光ナビ

Mikoshi rushing into the sea and farewell songs ringing through the autumn sky

What to expect

During the festival, mikoshi from each shrine are carried in procession through the area, with events taking place at Ohara Beach, the fishing port, the shopping street, and other locations.

Along the shopping street, mikoshi proceed to festival songs, and there are moments when children sing as well.

In the evening, the mikoshi gather at Ohara Elementary School. After circling the school grounds, they draw close to one another and exchange songs, bringing the festival to a close.

How to take part

Visitors can watch the event.

Location and access

Venue and address

大原海水浴場、大原小学校、大原中央商店街ほか。

住所は〒298-0004 千葉県いすみ市新田深堀若山入会地です。

Train and bus

JR外房線「大原駅」下車。

各会場へ徒歩で向かい、大原海水浴場までは徒歩20分の例が案内されています。

By car

圏央道「市原鶴舞IC」から国道297号線・国道465号線経由で約45分、九十九里有料道路「一宮IC」から九十九里ビーチライン・国道128号線経由で約20分です。

交通規制等が行われるため、公共交通機関での来場が推奨されています。

Address 〒298-0004 千葉県いすみ市新田深堀若山入会地

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Dates and season

2026年の開催案内（掲載日程は終了しています）

2026年は9月23日（水・祝）と24日（木）の2日間に開催される予定として案内されていました。

初日は十数基の神輿が海へ入る「汐ふみ」が行われます。

両日とも、夕闇が迫る頃に花火を合図とする「大別れ式」が予定されています。

Accommodation and hotels PR

Tips for your visit

会場は大原海水浴場、大原小学校、大原中央商店街など複数に分かれるため、見たい神事に合わせて移動計画を立てる必要があります。

神輿が海に入る場面や街中の渡御では、周囲の進行を妨げない位置から観覧してください。

交通規制等が行われるため、来場には公共交通機関の利用が推奨されています。

Nearby attractions

Ohara Beach, listed as a festival venue, is also featured as a nearby sightseeing spot.

Nearby attractions include Ohara Fishing Port’s Minato no Asaichi morning market, Isabaya, a shop directly operated by the fisheries cooperative, the Nanohana Hibiya farmers’ market, and the “Bell of Peace” at Ohara Park.

Nearby dining options include Ebiya, known for seafood and beachside grilling, and restaurants serving local fish dishes.

Origins and History of Ohara Hadaka Festival

The Ohara Hadaka Festival is said to have been held since the Edo period.

Votive plaques dedicated in Bun久 4 (1864) and another inscribed with Tenpo 12 suggest that the customs and organization of the festival were established during the Tenpo era.

Its present-day form and the name “Ohara Hadaka Festival” took hold around the time of the 1973 Wakashio National Sports Festival, and it became known beyond the neighboring areas.

Official information

For information about the festival and detailed explanations of its place in local culture, see the Isumi City official website.

The Fisheries, Commerce, Industry and Tourism Division’s Tourism and Local Products Promotion Office is listed as the contact point for inquiries.

For the latest information on dates, traffic restrictions, and other details, please check the official announcement for the year of the festival.

Visit the official website

Ohara Hadaka Festival at a Glance

The Ohara Hadaka Festival is a traditional event held in the Ohara district of Isumi City. Highlights include Shiobumi, when mikoshi enter the sea, and a procession from the shopping street to Ohara Elementary School.

During the Daibetsurei ceremony, the mikoshi are raised high as bearers bid farewell with fireworks and festival songs.

Details for the 2027 dates and venues will need to be confirmed in future official announcements.