Far from the busy streets of Tokyo, Aogashima offers a very different side of Japan. Located around 358 kilometres south of the capital, this small island is known for its unusual volcanic landscape, steep coastal cliffs, green hills, and remarkably clear night skies.

With quiet walking routes and natural geothermal attractions, Aogashima is an appealing destination for travellers who enjoy peaceful surroundings and outdoor experiences.

Walk Around Mount Maruyama

For a closer look at the island's inner volcanic landscape, take a walk around Mount Maruyama. The route follows a small ridge within the central crater, passing lush vegetation and open sections where the surrounding terrain becomes easier to appreciate.

A complete circuit takes approximately one hour at a comfortable pace. The path is a pleasant option for visitors who want an outdoor activity without committing to a long mountain hike. Sturdy footwear is recommended because some sections may be uneven. The Ikenosawa area, located inside the crater, is another worthwhile place to visit. Its combination of green woodland, volcanic ground, and rising geothermal steam creates a landscape quite different from the coastal viewpoints.

Enjoy the Night Sky

Aogashima is especially appealing after sunset. With very little artificial lighting, the island provides excellent conditions for stargazing when the sky is clear. Oyama Observatory Park is a popular place to look upwards and enjoy the open view. Ikenosawa is another location worth considering. Its quiet surroundings and unusual volcanic setting create a distinctive atmosphere for an evening outdoors. Depending on the season and visibility, visitors may be able to spot numerous stars and bright celestial objects.

For the best experience, check the weather forecast and choose a night with limited cloud cover. Bring a light jacket, as temperatures can feel cooler after sunset, and carry a flashlight when walking along darker paths.

Experience Natural Geothermal Facilities

One of Aogashima's most unusual activities involves making use of the island's natural underground heat. At the Ikenosawa geothermal area, steam from the ground is used for a simple outdoor cooking experience. Visitors can prepare items such as eggs and potatoes using a geothermal steam facility, with preparation taking around 20 minutes for eggs and 40 minutes for potatoes.

Nearby, the Fureai Sauna offers another way to experience the island's geothermal environment. The facility uses natural heat and steam, creating a relaxing stop after a day of walking. Admission is US$1.90, while children and visitors aged 65 or older pay around US$0.65.

Opening hours are generally 4 p.m. to 8 p.m. on weekdays and 2 p.m. to 8 p.m. on weekends, with last entry at 7 p.m. It is usually closed on Wednesdays, so check the schedule before visiting.

Plan Your Journey to Aogashima

Getting to Aogashima requires travelling through Hachijojima, a larger island to the north. From there, visitors can choose between a passenger ferry and a helicopter. The ferry takes approximately three hours and is generally the less expensive option. The price in one-way fare is about US$23.

Accommodation and Practical Tips

Aogashima has a limited number of places to stay, including traditional guesthouses and a designated campground. Booking accommodation before travelling is essential. Visitors may not be permitted to board transportation to the island without confirmed lodging arrangements.

There are few shops and services, so bring enough cash and personal essentials for the duration of the stay. Card payments are not widely accepted, and communication can be challenging for visitors who do not speak Japanese. A translation app can be useful. Rental cars are available on the island, but an international driving permit is required for eligible visitors. According to the island guide, small vehicles can be rented for approximately US$25 for an eight-hour period. However, visitors should confirm rental rates and availability directly with the provider before travelling.

Aogashima offers a rare opportunity to experience a volcanic island at a slower pace. Its unusual crater landscape, peaceful hiking routes, geothermal facilities, and star-filled nights create a trip that feels far removed from Japan's busy cities. Careful planning is essential because transport and accommodation are limited, but those willing to make the journey can enjoy a distinctive island experience shaped by nature and quiet surroundings.