What is Lake Yamanaka (山中湖)?
Lake Yamanaka (山中湖, Yamanakako) is one of the Fuji Five Lakes, located in Yamanakako Village, Minamitsuru District, Yamanashi Prefecture.
It is known as the largest of the Fuji Five Lakes by surface area and as a highland lake at an elevation of about 980 meters.
It is also famous for spots where you may see an “upside-down Mount Fuji” reflection (Sakasa Fuji, 逆さ富士) on the water and for viewpoints where Diamond Fuji (ダイヤモンド富士) can be observed.
Around the lakeshore, visitors enjoy walking and cycling, and depending on the season, water activities are also available.

Top Things to Do at Lake Yamanaka (Yamanakako): Mt Fuji Views & Activities
1. Sakasa Fuji (upside-down Mt Fuji) reflections & Diamond Fuji photo spots
At Lake Yamanaka, you may be able to see Mount Fuji reflected on the lake surface as an “upside-down Fuji.”
When the wind is light, the water becomes calmer and reflections are easier to enjoy.
The Lake Yamanaka area is also known as a place to observe Diamond Fuji.
The area around Nagaike Shinsui Park (長池親水公園) on the northern shore is often mentioned as a photo spot.
2. Yamanakako Hana-no-Miyako Park (山中湖花の都公園)
At Yamanakako Hana-no-Miyako Park (山中湖花の都公園) near the lake, you can enjoy seasonal flower fields with Mount Fuji in the background.
In some cases, a paid area may be set within the park.
3. Lake Yamanaka Community Plaza “Kirara” (山中湖交流プラザ「きらら」)
Lake Yamanaka Community Plaza “Kirara” (山中湖交流プラザ「きらら」) is a facility with an outdoor stage and lawn areas.
There are also lakeside paths, making it an easy spot to relax and take a leisurely stroll.
4. Lakeside cycling and water activities
There are routes suited for cycling around the shore, and some people enjoy a full loop by rental bicycle.
On the lake, there may be seasonal activities available depending on providers and conditions, such as boats, kayaking, and SUP.
Seeing Mount Fuji from the water can feel more powerful than from land.
5. Swans and lakeside scenery
You may also see swans at Lake Yamanaka, adding charm to the lakeside scenery.

Best Time to Visit Lake Yamanaka by Season
- Spring (April–May): Enjoy flowers and fresh greenery.
- Summer (June–August): Popular for a cool getaway, with waterside leisure activities.
- Autumn (September–November): Fall colors are a highlight, and it may overlap with the Diamond Fuji season.
- Winter (December–March): On clear days with crisp air, you may enjoy beautiful Mount Fuji views.
How to Get to Lake Yamanaka
Address
Yamanakako Village, Minamitsuru District, Yamanashi Prefecture
Access
- Train and bus
- You can reach the area by local bus from stations along the Fujikyūko Line.
- Highway buses may also operate from the Shinjuku area depending on the season.
- Car
- You can access the area via Yamanakako IC (山中湖IC) on the Higashi-Fuji-Goko Road.
Parking
There are parking areas around Lake Yamanaka.
On weekends during peak travel seasons, it can be crowded, so arriving early is recommended.

Recommended Things to Do at Lake Yamanaka
1. Photograph sunrise and sunset colors
Morning and evening light changes the mood of the scenery, making it popular for photography.
The area around Nagaike Shinsui Park (長池親水公園) on the northern shore is a classic viewpoint.
2. Stroll through Hana-no-Miyako Park
Enjoy a walk while looking out over seasonal flower fields.
Admission conditions may differ depending on the area.
3. Get closer to Mount Fuji with water activities
Available activities vary depending on providers and conditions.
Enjoy responsibly by checking safety gear and weather conditions.

Practical Travel Tips for Visitors
What to bring and what to wear
- Comfortable walking shoes: Handy for lakeside walks and cycling.
- Warm layer: Because it’s a highland area, temperatures can drop depending on season and time of day.
- Camera: Useful if you want to capture “upside-down Fuji” reflections or Diamond Fuji.
- Sunscreen: UV protection can help on clear days.
Notes
- Lakeside rules: Take your trash with you and help protect the natural environment.
- Crowd planning: Weekends and peak seasons tend to be busy.
- Safety on the water: Wear appropriate safety gear for water activities and be mindful of sudden weather changes.
Lake Yamanaka is a spot where you can enjoy Mount Fuji views and the outdoors.
Spend a special time here while feeling its seasonal charms.