
Guide
The Unzen-dake Disaster Memorial Hall (affectionately known as Gamadasu Dome) is Japan's first interactive volcano museum, located in Shimbara City, Nagasaki Prefecture. It was built to preserve the memory of the Mt. Unzen-Fugen eruptions that occurred in the 1990s, serving as a place to teach both the wonders of nature and the importance of disaster preparedness. The name "Gamadasu" comes from the local Shimabara dialect, meaning "to do one's best" or "to persevere," embodying the strong spirit of reconstruction and resilience. The facility combines high-tech exhibits with physical learning environments, making it an ideal place to deepen one's understanding of natural phenomena.
The facility stands on land created by massive debris flows that once reached the sea. The eruptions of Mt. Unzen-Fugen that began in 1990 and the devastating debris flows of 1991 had a profound impact on the local community. The museum's mission is to accurately preserve the history of both the destructive power of nature and the subsequent process of reconstruction for future generations. The exhibits go beyond mere historical records; they serve an important educational role in disaster prevention, explaining how natural disasters occur and what lessons can be learned from them.

The museum features permanent exhibits utilizing state-of-the-art technology. Visitors can experience the visual intensity of pyroclastic flows and debris flows through projection mapping and drone-captured footage. The exhibits also cover changes in topography caused by volcanic activity and the fundamental mechanisms of natural phenomena. For younger visitors, the "Kodomo Geo Park" (Children's Geo Park) offers a physical learning environment with facilities such as trampolines and bouldering walls, allowing children to learn about the Earth's power through active play.
The facility is open year-round and is a perfect destination for sightseeing even during rainy weather, as most activities are indoors. Every June, the "Inori no Tomoshibi" (Light of Prayer) ceremony is held to honor the victims of the disaster. This period offers a solemn and special atmosphere of respect for nature. During the daytime, the museum is often lively and bustling with families, while the late afternoon provides a more tranquil environment for focused viewing of the exhibits.

In the exhibition area, visitors can witness simulations of volcanic phenomena through advanced visual technology. In the Kodomo Geo Park, children can engage with the Earth's formation through activities like bouldering and trampolines. On certain weekends, the museum also hosts creative workshops, providing opportunities for active learning. Additionally, there is an on-site cafe serving local Shimabara ingredients, allowing visitors to enjoy the regional food culture during their break.
The Unzen-dake Disaster Memorial Hall is located in an area of the Shimabara Peninsula where the history of volcanic activity is deeply felt. The surrounding area includes popular destinations like Unzen Onsen, making it easy to plan a route that explores both the changing natural landscape and the history of volcanic activity. It serves as a central hub for travelers exploring the wonders of nature and the history of regional recovery.
While the facility is climate-controlled and comfortable, we recommend wearing active clothing if you plan to use the facilities in the Kodomo Geo Park. Payments can be made via cash, credit cards, or transit IC cards. The availability of English signage and staff assistance may vary depending on the season and specific exhibits. Please note that photography may be restricted in certain areas to protect the exhibits and video displays. The facility is designed to be accessible, and spaces for infants and toddlers are available.