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Ōi Castle: Day Trip from Tokyo (133 km) – Location & Nearest Station

Last updated: 2026-09-17

Ōi Castle is a castle in Nagano Prefecture, about 133 km in a straight line from Tokyo Station. That distance puts it within day-trip range of Tokyo for most travellers, depending on train connections.

TypeCastle
Name in Japanese大井城
LocationNagano Prefecture
Nearest station (straight line)Iwamurada Station – about 0.9 km
From Tokyo Stationabout 133 km (straight line)
From Nagoya Stationabout 190 km (straight line)
From Kyoto Stationabout 285 km (straight line)
Coordinates36.27494, 138.48219
MapOpen in Google Maps

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Source: location data from Wikidata (CC0). Distances are calculated by this website.

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We are working to carry Japanese craft and everyday culture beyond Japan, by building Japan Towns with local partners. Read the plan, or tell us if it resonates.

Read the Japan Town →