Bing found the following results
Otaru - Wikipedia
Otaru Travel Guide - What to do in Otaru City - japan-guide.com
15 Best Things to Do in Otaru (Japan) - The Crazy Tourist
Otaru - Travel Japan - Japan National Tourism Organization
The 12 BEST Things to Do in Otaru, Japan (2024 Edition)
THE 15 BEST Things to Do in Otaru - Tripadvisor
Otaru, Japan: All You Must Know Before You Go (2024) - Tripadvisor
Otaru travel - Lonely Planet | Japan, Asia
A Day Out in Otaru - Japan National Tourism Organization
Otaru Travel Guide: Things to do in Otaru, Hokkaido