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Ashizuri Underwater Observation Tower (Kōchi): Location, Nearest Station & Distance from Hiroshima

Last updated: 2026-09-17

Ashizuri Underwater Observation Tower is a tower in Tosashimizu, Kōchi Prefecture. The nearest of Japan's major hub cities is Hiroshima, about 183 km away in a straight line, so it suits an overnight trip better than a day trip.

Ashizuri Underwater Observation Tower
Photo: r18 INO (PACHIMO), CC BY 3.0, via Wikimedia Commons
TypeTower
Name in Japanese足摺海底館
LocationTosashimizu, Kōchi Prefecture
Nearest station (straight line)Arioka Station – about 19.7 km
From Hiroshima Stationabout 183 km (straight line)
From Hakata Stationabout 244 km (straight line)
From Osaka Stationabout 324 km (straight line)
Coordinates32.78597, 132.86014
MapOpen in Google Maps
Official websitehttp://www.a-sea.net/

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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 →