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Lake Mashu

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Lake Mashu

A mystical lake where one can find solace in the world of pristine blue.

4.30 4

Last update :
Supervised by :  Lake Mashu Tourism Association

Situated in the eastern part of Hokkaido, u is a caldera lake located within the "Akan-Mashu National Park". Encompassing an area of about 19.6 km² with a circumference of roughly 20 km, the environs of the vast lake have been designated as a special protection area. Due to the steep cliffs surrounding it, direct access to the lake is restricted. However, several observation decks set up around the lake offer panoramic views of its serene surface.

In the Ainu language, Lake Mashu is referred to as "Kamuito", which translates to "God's Lake". The water of the lake, known for its unparalleled clarity worldwide, reflects the blue sky, resulting in a unique, deep hue known as "Mashu Blue". The lake's appearance varies moment by moment, influenced by the movements of clouds and the sun. On windless days, its enchanting blue shade becomes even more prominent.

There are three observation decks around the lake, each offering different perspectives of Lake Mashu. The most accessible and popular among them is the "First Observation Deck of Lake Mashu". In 2022, the rest house was revamped as "Lake Mashu Kamuy Terrace", from which visitors can enjoy a breathtaking view. From the "Third Observation Deck of Lake Mashu", visitors can get a close view of Kamuishu Island, offering a dynamic panorama. The "Rear Mashu Observation Deck" is less frequented, allowing visitors a tranquil experience of standing face-to-face with the lake.

Highlights

  • A caldera lake located within the "Akan-Mashu National Park".
  • Known in the Ainu language as "God's Lake" and celebrated for its iconic "Mashu Blue", which is the reflection of the sky's blue.
  • Access to the lake is restricted, but visitors can enjoy views from three observation decks.

Photos

  • The mesmerizing "Mashu Blue" that reflects the sky's hue.

    The mesmerizing "Mashu Blue" that reflects the sky's hue.

  • A mystical view in the morning.

    A mystical view in the morning.

  • A beautiful vista as seen from the "First Observation Deck of Lake Mashu".

    A beautiful vista as seen from the "First Observation Deck of Lake Mashu".

Official FAQs

Frequently Asked Questions have been vetted and answered directly by each listing.

Q

Do you have signs or pamphlets in foreign languages? (If you do, which languages are available?)
A

There are no multilingual brochures. However, some signs and information panels include English translations either above or below the Japanese text.

Q

Is free Wi-Fi available in the area?
A

Free Wi-Fi provided by Teshikaga Town is available within Lake Mashu Kamuy Terrace.

Q

Are coin lockers available?
A

Not available.

Q

Are there toilets available?
A

Toilets managed by the facility are available for use during operational hours. Outside of these hours, please use the toilets located in the parking lot of the First Observation Deck of Lake Mashu.

Reviews

4

Some reviews are AI-translated.

  • Teru Beru

    If you can see the whole of Lake Mashu, you should seriously go buy a lottery ticket.
    This lake is ridiculously clean—so clean you’ll start wondering if someone’s secretly scrubbing it when no one’s looking.

  • みずいろ

    Such a beautiful lake! They call it the "foggy Lake Mashu," but I was lucky to catch an amazing view with no fog at all! It's just a short walk from the paid parking lot to the observation spot.

  • 施品芬

    Lake Mashu is surrounded by steep cliffs, so you can't get close to the water. But you can still enjoy the stunning views from the nearby observation decks.

  • 柳慧蜜

    This is a mysterious lake. Its unique blue color and beautiful scenery are sights you have to see at least once in your life.

Details

Name in Japanese
摩周湖
Postal Code
088-3200
Address
Teshikagagenya, Teshikagacho, Kawakamigun, Hokkaido（Lake Mashu First Observatory）
Telephone
015-482-2200（Masyuko Tourism Association）
Closed
Free to walk
Business Hours
Walk anytime
Admission
Free
Access
About 30 minutes by bus headed to the First Observation Deck of Lake Mashu from JR Mashu Station. Alight at the "First Observation Deck of Lake Mashu" bus stop, which is just a short walk away.
Official Website
Official Website (Japanese)
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