Lake Tazawa

Well knownIn most guidebooks for this region — but rarely with the practical detail.

Researched and written by Hinato

lakedeepest lakeTatsuko statuecobalt bluevolcanicAkita

Photo: 掬茶 / Wikimedia Commons (CC BY-SA 4.0) · original

Akita's geography does a lot of the work at Lake Tazawa — the rest is knowing when to show up.

Lake Tazawa (田沢湖) is Japan's deepest lake at 423 meters, located in Akita's mountainous interior. The depth creates an otherworldly cobalt-blue color — the water absorbs red wavelengths and reflects deep blue, similar to Crater Lake in Oregon. The lake's near-perfect circular shape (circumference 20km) results from volcanic caldera formation 16,000 years ago. Despite freezing Akita winters, Tazawa never freezes due to its depth and geothermal activity, maintaining 2-3°C even in January.

The lake's icon is the golden statue of Princess Tatsuko (辰子像), standing on a small peninsula jutting into the water. According to legend, Tatsuko drank from a sacred spring seeking eternal youth, transformed into a dragon, and now inhabits the lake depths. The gilded bronze statue (1968, sculptor Yasutake Funakoshi) depicts her in the moment before transformation — serene, elegant, gazing across the blue expanse. On calm days, the statue's reflection merges with the lake, creating surreal photographic symmetry.

Visiting essentials

Best season

Summer (June–August) for deepest cobalt-blue color; autumn (late October) for red foliage reflected in the blue water

How long to allow

2–3 hours for Tatsuko statue and lakeside walk; half day for full bicycle circuit (20km loop)

Hours

Lake access 24/7. Boat cruises 9:00 AM – 4:00 PM hourly (April–November).

Closed: Lake open year-round. Boat cruises suspended December–March.

Entry fee

Lake: free. Boat cruise: ¥1,200. Bicycle rental: ¥1,000/day.

Getting there

Directions

Lake Tazawa, Semboku. A bus from JR Tazawako Station to Tazawako-han bus stop (¥370). Tatsuko statue accessible by lakeside path. Boat cruises: ¥1,200, 40 minutes. Bicycle rental: ¥1,000/day (20km loop).

Beyond the guidebook

**Best viewing season:** Summer (June-August) offers the most intense blue coloration due to bright sunlight and calm winds. Autumn (late October) adds fiery red/orange foliage around the lake perimeter, contrasting dramatically with the blue water. Winter (December-February) is starkly beautiful — snow-covered shores, steaming lake surface (geothermal warmth creates mist), minimal tourists. Spring (April-May) can be gray and rainy. **Photography strategy:** The Tatsuko statue faces west, best photographed in morning light (8:00-10:00) when the sun illuminates her golden form against the blue lake. The classic composition is from the eastern shore, using a 70-200mm lens to compress the statue and distant mountains. The lakeside shrine (御座石神社, Gozanoishi Shrine) offers an elevated viewpoint 100 meters away. **Cycling the lake:** Renting a bicycle for the 20km circumference loop (2-3 hours) is the best way to experience Tazawa's varied perspectives. The route is gently hilly with dedicated bike paths on 60% of the circumference. Katajiri Beach (潟尻, southern shore) has the clearest water for wading. Ukiki no Sato (浮木の里, western shore) offers paddleboard rentals (¥1,500/hour) for on-water exploration. **Boat cruise value:** The 40-minute pleasure boat departs from Tazawako-han pier (hourly, 9:00-16:00). The boat circles Tatsuko Island and reaches the lake center, where water color is deepest. Not essential, but worthwhile in poor weather when cycling is unpleasant. English announcements explain the Tatsuko legend and lake geology. **Onsen pairing:** Tazawako Kogen Onsen (田沢湖高原温泉郷) is a cluster of hot spring resorts 15 minutes uphill from the lake (bus connection, ¥300). Day-use bathing (¥600-1,000) offers mountain views and post-cycling relaxation. The area is also a ski resort in winter (Tazawako Ski Resort), making this a year-round destination.

View on Google Maps