Daikon Island, Volcanic island in Nakaumi Lake, Japan
Daikon Island is a volcanic island in Nakaumi Lake covering about 5 square kilometers, with rolling terrain shaped by volcanic ash deposits. The island contains extensive cultivation areas along with natural formations that display its geological origins.
The island was originally called Tako-shima and served as a breeding site for horses intended for the imperial court. Over time, the island's use shifted, with agriculture becoming increasingly important.
The island is known for growing peonies and ginseng, traditions maintained over generations. Visitors see fields of flowering plants that shape the landscape and reflect this long-standing agricultural heritage.
A land bridge built in 1981 connects the mainland to the island, making direct access possible. Visitors can arrive easily by bus from Matsue or walk around the area.
Beneath the island lies a lava tunnel called Ryukeido, protected as a natural monument. The tunnel, extending about 200 meters, reveals the volcanic past and offers insight into the island's inner structure.
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