Researched guide · Checked on Oct 19, 2026
Aogashima, 358 kilometers south of Tokyo, is one of the most remote islands in the Izu chain and one of the most unusual: the whole island is a volcanic crater with a smaller volcano inside it. About 170 people live here, with one store and a few bars, and the night sky is spectacular.
Quick answer
Getting there: Via Hachijojima: boat (about 2.5 hours) or helicopter (20 minutes)
Time needed: 2 days or more
Best time: Calm seasons; check the weather, as boats are often cancelled
Good for: Adventurous travelers, stargazing, volcanic scenery
Plan Your Visit to Aogashima Island
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Overview
| Getting there | Via Hachijojima: boat (about 2.5 hours) or helicopter (20 minutes) |
| Time needed | 2 days or more |
| Best time | Calm seasons; check the weather, as boats are often cancelled |
| Good for | Adventurous travelers, stargazing, volcanic scenery |
Best Things to Do
The double caldera
Sheer cliffs rise from the sea and drop inward into a huge bowl, with Mt. Maruyama, the inner volcano, in the middle. The best views are from the helicopter, and trails lead to lookouts.
Oyama Observation Park
One of the best viewpoints over the double caldera, Maruyama and Otonbu, the island’s highest point; on clear days you can see Hachijojima.
Stargazing
With almost no light, you can see the Milky Way, and at the right time Canopus or the Perseid meteor shower.
Aogashima Fureai Sauna and geothermal cooking
A geothermal sauna where you can shower and relax. Outside, steam vents are used to cook eggs and sweet potatoes, available at the island store.
Food & Drink
- The island’s few bars serve local dishes and Aochu, a strong local spirit made from sweet potatoes. They are also the place to meet locals and sing karaoke.
Shopping
- One island store.
Where to Stay
Accommodation is limited to a few small B&Bs and a free campsite with minimal facilities, and all of them, including the campsite, must be reserved in advance. Plan to stay on Hachijojima before and after.
Search hotels in Aogashima Island
Getting There
- From Hachijojima by boat: about 2 hours 30 minutes; service is often affected by bad weather.
- From Hachijojima by helicopter: about 20 minutes; reservations are required.
- Hachijojima can be reached by plane from Haneda (about 50 minutes) or by ship from Takeshiba.
New to Tokyo trains? See Trains in Tokyo and How to use Suica.
Suggested Itinerary
- Day 1Helicopter from Hachijojima
- Walk
- AfternoonOyama Observation Park
- NightStargazing
- Day 2Hike to Maruyama, then the geothermal sauna
Travel Tips
- Build extra days into your plans in case the boat or helicopter is cancelled.
- Reserve accommodation, even the campsite, before you go.
- Bring some cash, as small shops and inns may not accept cards.
- Book accommodation first, then transport, especially in summer and holidays.
Comparing islands? See all eleven side by side in Tokyo’s islands compared.
FAQ
How do I get to Aogashima?
Only via Hachijojima, by boat (about 2.5 hours) or helicopter (20 minutes).
Do I need to book accommodation on Aogashima?
Yes. All accommodation, including the free campsite, must be reserved in advance.
What is special about Aogashima?
The whole island is a volcanic crater with a second, smaller volcano inside it.
Travel Essentials
Ferries to the Islands
Ships and jet ferries leave from Takeshiba Pier near Hamamatsucho.
Airport Transfers
Trains, the monorail, the Airport Limousine Bus and taxis compared.
JR Pass & Transport Passes
Whether a rail pass or a Tokyo subway ticket will save you money.
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Sources
Information comes from the official sources below (checked October 19, 2026). Hours and prices change, so please check before you go.
