Izu Oshima is a stunning island gateway easily accessible from Tokyo. While many know it for its beautiful beaches and relaxing hot springs, the island’s true allure lies in the dramatic, otherworldly landscapes forged by volcanic activity.
We highly recommend visiting two of the island’s most iconic landmarks: Mt. Mihara and the Urasabaku (Back Desert). For nature lovers, these spots offer a rare chance to witness rugged volcanic terrain and a mysterious environment that feels more like an alien planet than a Japanese island.
1. Experience the Power of an Active Volcano at Mt. Mihara
Standing at 758 meters, Mt. Mihara is the heart and symbol of Izu Oshima. Near its summit, you'll encounter a jagged, primeval landscape that is a far cry from your typical mountain hike or city street.
The highlight is the massive, yawning crater. Standing before this vast expanse of earth created by volcanic eruptions, you can truly feel the living pulse of our planet.
Along the trail, you'll see unique formations created by cooling lava and sweeping natural vistas. On a clear day, the panoramic views from the top are simply breathtaking.
While it may sound like a serious climb, there are various routes and distances available, making it accessible even for beginners.
Note: Since Mt. Mihara is an active volcano, always check for volcanic activity levels, entry restrictions, and trail conditions before your visit to ensure a safe trip.
2. A Lunar Landscape in Japan: Urasabaku (The Back Desert)
Right next to Mt. Mihara is the Urasabaku, one of the most unique landscapes in all of Japan.
This area is covered in black volcanic ash and scoria (small volcanic rocks). It is famously the only place in Japan officially labeled as a "desert" on the maps of the Geospatial Information Authority of Japan.
Upon arrival, you’ll be stunned by the endless stretch of black earth. It’s a striking contrast to the lush greenery typical of the Izu Islands, offering a completely different face of nature.
The scenery looks like something out of a sci-fi movie or a mission to the Moon—perfect for capturing extraordinary photos that you just can't get on a standard vacation!
Reaching the Viewpoints
There are two main observation decks at Urasabaku. For a shorter walk, start from the "Moon and Desert Line" parking lot. It’s about a 700-meter walk to the 1st Observation Deck and 1.2 kilometers to the 2nd.
Be prepared for strong winds and loose, gravelly ground. Sturdy walking shoes and a windbreaker are highly recommended.
3. The Ultimate Combo: Mt. Mihara and Urasabaku
To get the most out of your trip, we recommend visiting both spots together.
Mt. Mihara lets you witness the raw power of the crater and lava flows, while Urasabaku offers a serene, surreal experience across the black sands. Together, they showcase the incredible depth and variety of Izu Oshima’s volcanic nature.
A combined trekking course that includes the crater rim loop (Ohachi-meguri) and the Urasabaku takes about 3 hours and 30 minutes. Plan according to your fitness level and the weather.
If you're not a frequent hiker, don't worry—you can easily enjoy each spot individually at a more relaxed pace.
4. Essential Tips for Your Visit
Clothing: Wear comfortable trekking shoes and bring a windbreaker to handle the mountain breeze.
Supplies: Carry plenty of water, a hat, rain gear, and a portable battery for your phone.
Access: Renting a car or taking a local bus is the best way to get to the trailheads.
Safety: Stay updated on volcanic activity, road closures, and bus schedules.
Nature Protection: The summit caldera, including Urasabaku, is a Special Protection Area. Do not enter with vehicles and please help preserve the environment by leaving no trace.
For those wanting a deeper experience, consider booking a tour with a certified Izu Oshima Geopark guide.
Summary: Witness the Earth's Dynamic Power on Izu Oshima!
Mt. Mihara and the Urasabaku are must-visit destinations for anyone looking to see the powerful, cinematic side of this volcanic island.
From the awe-inspiring crater to the mystical black desert, you’ll discover a side of Izu Oshima that goes far beyond just sun and sea.
If you’re looking for a unique travel experience or the perfect shot for your photo gallery, a trip to these volcanic wonders is an absolute must. 🌋✨
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