
Lake Tazawa
The Mystical Deep Blue Jewel of Akita
Lake Tazawa holds the distinction of being Japan's deepest lake at 423.4 meters, formed over 100,000 years ago through a combination of volcanic activity and tectonic movements in the Ou Mountains. The lake's exceptional depth prevents it from freezing even in the harsh Tohoku winters, creating a unique microclimate that has fascinated scientists and visitors for centuries. Local folklore tells the tragic tale of Princess Tatsuko, who drank from a sacred spring seeking eternal beauty and was transformed into a dragon goddess, now eternally guarding the lake's pristine waters.
The lake's modern recognition began in the early 20th century when scientific surveys confirmed its record-breaking depth and exceptional water clarity. In 1937, the area was designated as part of the Towada-Hachimantai National Park, preserving its natural beauty for future generations. The iconic golden statue of Princess Tatsuko, created by sculptor Yasutake Funakoshi, was erected on the eastern shore in 1968, becoming one of Japan's most photographed lakeside monuments. The lake's pristine ecosystem supports unique aquatic life, including the rare kunimasu salmon, once thought extinct and rediscovered in 2010.
Today, Lake Tazawa attracts over 1.5 million visitors annually who come to experience its otherworldly cobalt blue waters, which can reach transparency levels of up to 31 meters in winter months. The lake's perimeter of 20 kilometers offers diverse recreational opportunities throughout the seasons, from kayaking and paddleboarding in summer to cross-country skiing and hot spring bathing in winter. As a symbol of Akita Prefecture's natural beauty and a sacred site in local Shinto tradition, Lake Tazawa represents the harmonious blend of natural wonder and cultural heritage that defines this region of northern Japan.

Key Highlights
- Japan's deepest lake at 423.4 meters, never freezes year-round
- Stunning cobalt blue waters with transparency up to 31 meters
- Iconic golden statue of Princess Tatsuko on the shore
- 20-kilometer scenic cycling route around the entire lake
- Part of Towada-Hachimantai National Park since 1937
- Home to rare kunimasu salmon rediscovered after 70 years
Access Information
Location
Tazawako, Senboku, Akita 014-1204, Japan
Nearest Stations
- • JR Tazawako Station (Tazawako Line) - 15 min by bus
- • Tazawako Kohan Bus Stop - lakeside access
- • Katajiri Bus Stop - Princess Tatsuko statue area
Opening Hours
Open 24 hours year-round (boat rentals and facilities operate seasonally)
Admission Fee
Free lake access (rental fees apply for bicycles, boats, and kayaks)
How to Get There
From JR Tazawako Station
Take Ugo Kotsu bus bound for Tazawako Ichinoseki or Lake Tazawa Resort towards lakeside. Buses run hourly. Alight at Tazawako Kohan bus stop for lake access and statue area.
15 minutes
From Akita City
Take JR Akita Shinkansen to Tazawako Station (70 minutes), then local bus to lakeside (15 minutes). Total cost approximately 4,000 yen one way.
90 minutes
From Tokyo
Take JR Akita Shinkansen Komachi from Tokyo Station to Tazawako Station (3 hours 15 minutes), then local bus to lakeside. Reserved seat costs around 17,000 yen one way.
3.5 hours
Tips & Visiting Guide
Make the most of your visit with these helpful tips and guidelines.
Golden Statue Photography
The Princess Tatsuko statue on the eastern shore is most photogenic during sunrise (5-7 AM in summer) when golden light illuminates both the statue and the lake. Visit during early morning or sunset for fewer crowds and optimal lighting. The statue area includes a small beach for water-level photos.
Lake Cycling Circuit
Rent bicycles at the lakeside to complete the scenic 20-kilometer circuit around the lake (2-3 hours at leisurely pace). The route offers changing perspectives of the lake and mountains with several rest stops and photo viewpoints. E-bikes available for the moderately hilly terrain. Rental shops located near Tazawako Kohan bus stop.
Cobalt Blue Waters
The lake's famous deep blue color is most vivid on sunny days between May and October. Water clarity reaches peak transparency in winter (up to 31 meters) but appears even more blue in summer sunlight. The northeastern shore offers the best vantage points for capturing the intense cobalt hues.
Water Activities
Kayaking and stand-up paddleboarding are available from May through October, offering intimate experiences with the crystal-clear waters. Rental operators provide equipment and brief instruction near the Princess Tatsuko statue area. Early morning paddles (7-9 AM) feature glassy water conditions and peaceful atmosphere.
Nearby Hot Springs
The Tazawako Kogen Onsen area on the eastern shore features several hot spring resorts with lake views. Many ryokan offer day-use bathing facilities (700-1,500 yen). The combination of lakeside scenery and therapeutic waters makes this a perfect end to a day of exploration.
Winter Wonderland
Despite heavy snowfall, the lake never freezes due to its great depth, creating ethereal scenes with snow-covered shores against blue waters. The Tazawako Ski Resort nearby offers winter sports with lake views. February's Tazawako Winter Festival features illuminations and snow sculptures along the shore.
Local Cuisine
Lakeside restaurants specialize in iwana (char) and rainbow trout caught from the lake's pristine waters. Try kiritanpo nabe, Akita's signature hot pot with rice stick cylinders and chicken. Several cafes near the statue area offer lake-view dining with local coffee and seasonal desserts.
Best Visiting Seasons
Late spring (May-June) brings fresh greenery and comfortable temperatures ideal for cycling. Summer (July-August) offers water activities and the most vivid blue colors. Autumn (October-early November) features spectacular foliage around the lake. Winter provides unique ice-free blue waters surrounded by snow.
FAQ
What makes Lake Tazawa special compared to other lakes in Japan?
Lake Tazawa is Japan's deepest lake at 423 meters, known for its stunning cobalt blue water that remains ice-free year-round due to its depth. The lake is famous for the golden Tatsuko statue, a symbol of eternal beauty, and offers breathtaking scenery with Mount Komagatake reflected in its pristine waters.
How long does it take to cycle around Lake Tazawa?
The full cycling route around Lake Tazawa is approximately 20 kilometers and takes 2-3 hours for casual cyclists. Rental bicycles are available near the lake, and the relatively flat lakeside path makes it accessible for most fitness levels. Plan extra time for photo stops at scenic viewpoints.
When is the best time to visit Lake Tazawa?
Late spring through autumn (May to October) offers the best weather for outdoor activities. Summer provides warm swimming conditions, while autumn (September-October) features stunning foliage around the lake. Winter visits offer a unique, serene atmosphere with snow-covered landscapes, though some facilities may be limited.
How do I get to Lake Tazawa from Tokyo?
Take the Akita Shinkansen from Tokyo to Tazawa-ko Station, which takes about 3 hours. From the station, local buses run to various points around the lake, taking 10-15 minutes. The total journey costs around 18,000 yen one way by shinkansen.
Can you swim in Lake Tazawa?
Yes, swimming is popular in summer at designated beach areas such as Shirahama Beach and Goza-no-Ishi Beach. The water is clean and clear, though quite cool even in summer. Swimming season typically runs from mid-July through August when water temperatures are most comfortable.
Where is the famous Tatsuko statue located?
The golden Tatsuko statue stands on the western shore of Lake Tazawa at Tatsuko-zo beach. It's easily accessible by bus or bicycle and is the most photographed spot at the lake. The statue depicts the legendary beauty Tatsuko, who according to folklore transformed into a dragon to live in the lake forever.
Are there boat tours available on Lake Tazawa?
Yes, sightseeing boats operate from spring through autumn, typically from late April to early November. The tours last about 40 minutes and circle around the lake, offering views of the Tatsuko statue and surrounding mountains. Tours cost around 1,500 yen for adults.
What activities can I do at Lake Tazawa besides sightseeing?
Activities include cycling, swimming, paddleboarding, kayaking, and fishing. In winter, you can enjoy cross-country skiing and snowshoeing. The lake area also has hiking trails through nearby forests and mountains. Many visitors combine a lake visit with nearby Nyuto Onsen hot springs.
How much does bicycle rental cost at Lake Tazawa?
Bicycle rentals typically cost 500-1,000 yen for 2 hours, or around 1,500-2,000 yen for a full day. Electric-assist bicycles cost slightly more. Rental shops are located near major bus stops and the Tazawa-ko Lake Resort area.
Are there restaurants around Lake Tazawa?
Yes, several restaurants are scattered around the lake, particularly near the Tazako-kogen area and main beach areas. Options range from casual cafes to restaurants serving local Akita cuisine including kiritanpo (grilled rice sticks) and fresh lake fish. Some close during winter months.
Is Lake Tazawa crowded with tourists?
Lake Tazawa is moderately popular but rarely feels overcrowded except during peak summer weekends and autumn foliage season. Weekdays and early mornings offer peaceful experiences. The lake's size means crowds disperse naturally around different areas.
Can I visit Lake Tazawa as a day trip from Tokyo?
While possible, it's quite rushed. The shinkansen journey alone is 6 hours round trip. It's better to stay overnight in the area to fully enjoy the lake and visit nearby attractions like Nyuto Onsen or Kakunodate samurai district without time pressure.
What should I bring for a visit to Lake Tazawa?
Bring comfortable walking or cycling shoes, sunscreen, a hat, and layers as lakeside weather can change. If planning water activities, bring swimwear and towels. A camera is essential for the scenic views. In cooler months, bring warm clothing as it can be windy by the lake.
Are there accommodations near Lake Tazawa?
Yes, various accommodations surround the lake including hotels, ryokan, and guesthouses. The nearby Tazawako-kogen area has several resort hotels. For a traditional experience, many visitors stay at the famous Nyuto Onsen hot spring inns, about 30 minutes away by bus.
What is the legend of Tatsuko?
According to legend, Tatsuko was a beautiful maiden who drank from a sacred spring seeking eternal youth and beauty. She transformed into a dragon and made Lake Tazawa her home. The golden statue commemorates this legend, and locals believe the lake's mysterious deep blue color comes from Tatsuko's presence.
Is there a bus pass for getting around Lake Tazawa?
Yes, the Tazawako-Nyuto Onsen area offers seasonal bus passes that allow unlimited rides on local buses around the lake and to nearby attractions including Nyuto Onsen. These passes are economical if visiting multiple spots and can be purchased at Tazawa-ko Station.
What other attractions are near Lake Tazawa?
Nearby attractions include Nyuto Onsen hot springs (famous for its milky white waters), Kakunodate samurai district (30 minutes by train), and Mount Komagatake for hiking. The combination of these attractions makes the Tazawa area worth a 2-3 day visit.
Can I see Mount Fuji-like views at Lake Tazawa?
While you won't see Mount Fuji, Lake Tazawa offers beautiful views of Mount Komagatake (sometimes called Akita-Komagatake) reflected in the lake's clear waters, creating picturesque scenes especially at sunrise and sunset. The mountain's conical shape provides a striking backdrop similar to iconic lake-mountain compositions.
Is Lake Tazawa suitable for families with children?
Yes, the lake is family-friendly with safe swimming beaches, easy cycling paths, and boat tours that children enjoy. The shallow areas at beaches are suitable for young children. However, supervise children carefully as the lake is very deep just offshore. Many families combine lake activities with nearby hot springs.
What makes the water so blue at Lake Tazawa?
The intense cobalt blue color comes from the lake's exceptional depth (423 meters) and clarity. The deep water absorbs red wavelengths of light while reflecting blue, creating the striking color. This phenomenon is similar to other deep caldera lakes worldwide but particularly vivid at Lake Tazawa.
Nearby Attractions
Explore more wonderful destinations in the same prefecture.

Akita Museum of Art
A striking waterfront museum designed by Tadao Ando, featuring the world's largest collection of works by Tsuguharu Foujita, including the monumental 'Events in Akita' mural.

Kakunodate Samurai District
A beautifully preserved samurai town featuring traditional black-walled samurai residences along tree-lined streets, offering an authentic glimpse into Edo-period warrior life in northern Japan.

Nyuto Onsen
A secluded hot spring village nestled in the mountains of Akita, featuring seven traditional ryokan with milky-white sulfur waters and pristine beech forest surroundings.

Yokote Kamakura Snow Festival
A 450-year-old winter tradition featuring hundreds of igloo-like snow houses where children serve amazake and mochi, creating one of Japan's most enchanting winter festivals.