New Yashima Aquarium

Overview

New Yashima Aquarium is an aquarium in Yashima-higashimachi, Takamatsu City, Kagawa Prefecture. Perched atop Mount Yashima at an elevation of about 300 meters, it is known as an unusual "aquarium on a mountaintop," rare even in Japan. Its greatest appeal is this unique setting, where you can meet sea creatures on a height overlooking the city.

Highlights

• ●Rare mountaintop setting on Yashima at about 300 m elevation
• ●An aquarium with a history dating to its 1969 opening
• ●Its reopening as New Yashima Aquarium in 2006
• ●A hilltop location with views from the Yashima summit

History

The facility began in 1969 when Shikoku Electric Power opened it as the "Yashima Sanjo Aquarium." After a brief closure in 2006, it reopened that December as the "New Yashima Aquarium." It is a long-established leisure spot that has stood on the Yashima summit since its founding. Note that it has been closed for renovation since April 7, 2025, for a planned period of about two years.

Map

34.3585, 134.1000 · Wikidata

Suggested itinerary

1. 1Head to the Yashima area of Takamatsu City
2. 2Ascend to the Yashima summit (about 300 m elevation)
3. 3View the sea creatures at New Yashima Aquarium (after reopening)
4. 4Enjoy the views over Takamatsu from the Yashima summit

Did you know?

💡 Standing on the summit of Mount Yashima at about 300 meters, this is a mountaintop aquarium rare even in Japan. Its predecessor was the "Yashima Sanjo Aquarium," opened by Shikoku Electric Power in 1969.

Nearby spots