Blue Cave | Otaru Sightseeing

Home | Otaru Tourism Portal | Blue Cave

[notice]
To everyone planning a sightseeing trip to Otaru (Blue Cave Cruising)
On July 17, 2025, a rockfall occurred in the Blue Cave in Otaru City. In order to prioritize safety, we have decided to cancel entry into the Blue Cave. For more information, please contact the relevant operators.

-----------------------

The beautiful, sparkling blue "Blue Cave" was created by a combination of various coincidences, including the unique topography created by seawater erosion, the direction and angle of the sunlight, and the transparency of the seawater. When sunlight pours into the cave's entrance, the ocean absorbs the other six of its seven colors, leaving only the blue, causing the sea surface to glow blue.

While the Italian island of Capri is world famous, there are several places in Japan known as the "Blue Grotto," and you can actually see it off the coast of Otaru and Shakotan. The Blue Grotto in Otaru and Shakotan, facing the Sea of Japan, is renowned for the beautiful contrast between the rugged rocks and the refreshing blue waters. Another unique feature of Otaru's Blue Grotto is that the entrance is wider than other caves, allowing you to explore the inside of the cave from a small boat.

Facility name : Otaru Blue Cave Dragon Palace Cruise

Address: 4-5 Minatomachi, Otaru City, Hokkaido 047-0007

phone
0134-32-3911

Opening hours
08:30-17:30

Closed days <br>May change depending on weather conditions, etc. Please check the website for details.

Home page
＞Click here for the homepage

Facility name : The Original! Blue Cave Cruise / Tsuusen Co., Ltd.

Address: 3-1 Ironai, Otaru City, Hokkaido 047-0031

phone
0134-23-8942

Opening hours
9:00-19:00

Closed days <br>May change depending on weather conditions, etc. Please check the website for details.

Home page
＞Click here for the homepage

Facility name: Blue Cave Exciting Cruise Otaru

Address: 3-6-17 Ironai, Otaru City, Hokkaido 047-0031

phone
080-6076-5599

Opening hours
08:30-17:30

Closed days <br>May change depending on weather conditions, etc. Please check the website for details.

Home page
＞Click here for the homepage

I want to explore Otaru

This Tai Monaka chocolate features 23 lucky spots in Otaru on the packaging. Chocolate and rice puffs are placed inside a traditionally baked monaka shell made from 100% glutinous rice.

Otaru Tourism Category List

Otaru Tourism Portal Homepage

UNGAPLUS

This shop, renovated from the "Old Otaru Warehouse Main Building," said to be the oldest commercial warehouse in Hokkaido in the Otaru North Canal area, develops and sells original products that convey the charm of Otaru. The shop tells the story of Otaru's prosperity during the Hokkaido pioneering era and the history of the Kitamae ships, and displays and sells processed seafood and agricultural products from ports of call and Hokkaido, as well as original products by artisans and artists with ties to Otaru.