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Otaru (ōtäˈrō) [key], city (1990 pop. 163,211), SW Hokkaido, Japan, on Ishikari Bay. A major port and Hokkaido's main commercial and industrial center, Otaru is the site of the Asarigawa Spa and the Otaru Aquarium.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

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