Mount Iwadono – Where Breathtaking Views Meet Samurai History

1. What Is Mount Iwadono?

Mount Iwadono, located in Ōtsuki City, Yamanashi Prefecture, is a striking standalone peak with an elevation of 634 meters.
Once the site of the historic Iwadono Castle, the mountain is now a beloved hiking destination for both domestic and international travelers.
Just a short walk from Ōtsuki Station on the JR Chūō Line, it's incredibly accessible for day-trippers from Tokyo.

2. Highlights of Mount Iwadono

① Unforgettable Panoramic Views

From the summit, hikers are rewarded with an extraordinary view of Mount Fuji rising behind the townscape of Ōtsuki.
This contrast between nature and town is truly breathtaking and has earned Mount Iwadono a place among the “100 Best Views of Mount Fuji in Kanto.”
The scenery shifts with the seasons, offering something new year-round.

② Historic Castle Ruins with Samurai Legacy

Dating back to the 9th century, Mount Iwadono was originally home to the Entsū-ji Temple of the Tendai sect.
It later became a site for Shugendō (mountain asceticism) and was eventually fortified into Iwadono Castle under the rule of the Takeda and Oyamada clans during the 16th century.
Today, the ruins and stone walls still stand, inviting visitors to walk in the footsteps of samurai.

③ Flower Lovers’ Paradise

In spring, around 300 cherry trees bloom along the trail, and the annual Sakura Festival draws many visitors.
Evening light-ups create a magical ambiance for nighttime hanami.
In May, the mountain is blanketed with over 600 azaleas—including yamatsutsuji, mitsuba, satsuki, and omurasaki varieties—providing vibrant colors across the landscape.

• Cherry blossom season: Late March to early April (yaezakura lasts through late April)

• Azalea season: Early to late May (varies by species)

④ An Adventure-Filled Trail

The hike to the summit takes approximately one hour.
While the trails are generally well-maintained, certain sections feature steep inclines, rocky ridges, and chains, adding a touch of adventure.
We recommend proper hiking shoes and basic mountain gear for a comfortable experience.

3. Conclusion

Mount Iwadono combines easy access from Tokyo with natural beauty, deep history, and a burst of seasonal color.
Whether you're a hiking enthusiast, a history lover, or a flower photographer, this peak offers a multi-dimensional experience.

A scenic escape, cultural exploration, and historical journey—all in one unforgettable hike.