What Is Lake Ashi? Hakone’s Scenic Caldera Lake with Mt. Fuji Views
Located in Hakone, Kanagawa Prefecture, “Lake Ashi (Ashi-no-ko)” is a lake where you can enjoy beautiful scenery with Mt. Fuji in the background.
It is a caldera lake formed about 3,100 years ago when a steam explosion at Mount Kamiyama, one of the central cones of Hakone Volcano, dammed a river. It sits at an elevation of about 724 m and has a circumference of about 19 km.
Lake Ashi is popular with domestic and international travelers for:
- Lake cruises on pirate ships and sightseeing boats
- Sightseeing combined with Hakone Shrine and hot springs
- Scenic viewpoints overlooking Mt. Fuji
It is also widely known as the outbound finish point and return start point of the Hakone Ekiden relay race held every January.

Top Things to Do and How to Enjoy Lake Ashi
1. Cruise Lake Ashi on the Hakone Pirate Ship
If you visit Lake Ashi, be sure to enjoy the lake views from a pirate ship cruise!
The “Hakone Pirate Ship,” operated by the Odakyu Hakone Group, is a popular sightseeing boat with luxurious decorations.
- Route: Connects Tōgendai Port, Moto-Hakone Port, and Hakone-machi Port
- Travel time: About 25–40 minutes one way (depending on the section)
- Fare: One way 600–1,700 yen for adults / 300–850 yen for children (depends on section). Special cabin requires an extra fee (240–800 yen depending on section)
Currently, three ships are in operation: “Queen Ashinoko,” “Royale II,” and “Victory.”
If you go out onto the deck, on clear days you may even see “upside-down Fuji” reflected on the lake.
There is also the “Lake Ashi Sightseeing Boat” operated by another company, so be sure to check in advance because departure ports and pass coverage differ.
2. Explore History and Power Spots at Hakone Shrine
On the eastern shore of Lake Ashi is the famous Hakone Shrine.
It is said to have been founded in 757 by the monk Mangan Shōnin, and many worshippers visit it as one of the Kanto region’s leading power spots.
Highlights of Hakone Shrine:
- The “Peace Torii” standing over the lake → An iconic symbol of Lake Ashi!
- The main shrine surrounded by cedar trees → The approach lined with giant cedars is also a highlight
- Kuzuryū Shrine (Shingū) → Famous for blessings related to love and relationships
In particular, the “Peace Torii” stands over the lake, creating a view that looks as if it is floating on the water!
It is also a popular photo spot, and on weekends and holidays there can be a line to take pictures.

3. Scenic Mt. Fuji View Spots Around Lake Ashi
Lake Ashi is also famous because Mt. Fuji can be seen clearly on fine days.
It is especially said to be easier to see Mt. Fuji on clear-air days from autumn to winter.
The following spots are particularly recommended for enjoying Mt. Fuji views!
① Cedar-lined lakeside path (around Hakone-machi Port)
A walking path on the southern shore of Lake Ashi.
It is easy to photograph the lake and Mt. Fuji together, and if conditions are right, you may also see “upside-down Fuji.”
② Daikanzan Observatory
A viewpoint where you can enjoy a sweeping view of Lake Ashi and Mt. Fuji.
Accessible by car or bus, it is known as an easy stop during a drive.
③ Hakone Ropeway (Tōgendai Station to Ōwakudani)
A ropeway from Tōgendai on Lake Ashi to Ōwakudani.
You can enjoy panoramic views of Lake Ashi and Mt. Fuji along the way!
At Ōwakudani, be sure to try the famous “black eggs” as well.
4. Relax in Hot Springs Around Lake Ashi
Hakone is also famous as a hot spring destination!
There are day-use hot springs and ryokan inns scattered around Lake Ashi, making it perfect for relaxing after sightseeing.
At lakeside accommodations, you may even be able to enjoy hot springs while looking out over Lake Ashi.

Useful Travel Tips for Visitors
How to Get to Lake Ashi
Lake Ashi is easy to access from Tokyo!
- Train + bus: Shinjuku Station → Odawara Station → Hakone-Yumoto Station → Bus to Lake Ashi
- Highway bus: Highway buses also run from the Shinjuku area to Tōgendai
- Car: Drive to Hakone from Tokyo via expressways
If you use the Hakone Freepass, you can enjoy unlimited rides on the pirate ship, ropeway, mountain railway, buses, and more, making it a great value.
Best Season to Visit
- Spring (March–May): Beautiful season for cherry blossoms and fresh greenery
- Summer (June–August): Ideal for escaping the heat at the high-elevation lakeside
- Autumn (September–November): Spectacular views as autumn leaves reflect on the lake surface
- Winter (December–February): Clear air means more chances to see Mt. Fuji sharply

Summary
- Lake Ashi is a highlight of Hakone sightseeing, offering beautiful scenery in every season
- It’s packed with attractions, including pirate ship cruises, Hakone Shrine, hot springs, and stunning Mt. Fuji views!
- Easy to access from Tokyo, and enjoyable as either a day trip or an overnight stay
Please enjoy a spectacular scenic trip at Lake Ashi!