Mizuho Hanzake Nature Museum is a nature education facility in Onan, Shimane Prefecture, dedicated to the fascinating world of the Japanese giant salamander, a species designated as a Special Natural Monument of Japan. In the local area, the salamander is affectionately known as “Hanzake”, and the museum offers visitors an opportunity to discover the close connection between this remarkable creature, the local environment, and the culture of Onan.
Inside the museum, a large aquarium recreates the river environment found around Onan. Visitors can observe living Japanese giant salamanders swimming in the water just a short distance away.
The aquarium is approximately 5 meters wide, giving visitors a clear view of these impressive amphibians as they move slowly through the water. Their unusual appearance and gentle movements can be both fascinating and surprisingly charming, making a visit memorable for children and adults alike.
The Japanese giant salamander is often described as a “living fossil” because its lineage preserves characteristics that have remained largely unchanged over an extremely long period. Learning about its distinctive appearance, behavior, and evolutionary history provides an engaging introduction to the ancient world of aquatic wildlife.
Mizuho Hanzake Nature Museum is designed to provide more than a traditional viewing experience. Exhibits encourage visitors to learn through multiple senses, including a section where they can experience the distinctive smell associated with the salamander.
Easy-to-understand displays explain the lifestyle and ecology of the Hanzake, helping visitors discover aspects of aquatic life that they might rarely encounter in everyday life.
The museum also introduces the broader natural environment of Onan, including the diverse plants and animals found throughout the region. This makes it possible to understand not only the Japanese giant salamander itself but also the rich ecosystem that supports it.
Rivers around Onan provide natural habitats for Japanese giant salamanders. After learning about them at the museum, visitors can continue their experience outdoors and observe the surrounding environment where these animals actually live.
An observation facility is also located nearby. Although sightings of wild Hanzake cannot be guaranteed, visitors may be fortunate enough to encounter one in its natural surroundings.
This connection between museum learning and outdoor nature observation is one of the museum’s most appealing features. It transforms a visit into an opportunity to discover the natural world beyond the exhibits.
Mizuho Hanzake Nature Museum is approximately 15 to 20 minutes by car from the Oasa Interchange on the Hamada Expressway, making it a convenient stop while exploring the Onan area by car.
The museum can also be reached by public transportation. From the nearest bus stop, Tadokoro (Roadside Station), it is approximately a 7-minute walk.
Surrounded by the quiet natural landscape of Onan, Mizuho Hanzake Nature Museum offers visitors a rare opportunity to encounter one of Japan’s most remarkable native amphibians while learning about the environment it depends on.
The museum is an enjoyable stop during a sightseeing trip, but it is also an important place for understanding the value of local ecosystems and wildlife conservation. By seeing the Japanese giant salamander up close and learning about its habitat, visitors can gain a deeper appreciation for the natural heritage of Shimane Prefecture.