Jeju Volcanic Island and Lava Tubes, Volcanic island and cave network in Jeju Province, South Korea.
Jeju Volcanic Island is formed by ancient lava flows that created an underground network of caves spanning many kilometers beneath the surface. These passages contain limestone formations and mineral deposits arranged naturally throughout the rock layers.
The island took shape over millions of years through volcanic eruptions that built up the central shield volcano. This geological process created the landscape we see today and left behind the cave systems now visible underground.
The volcanic landscape shapes how locals view and use this place in their daily routines and seasonal festivals. People have woven the natural elements into their way of living here over many generations.
The caves can be visited through marked entrance points, with guided tours available in different languages at the visitor centers. Wear comfortable walking shoes and prepare for uneven surfaces, as the passages both above and below ground can be challenging underfoot.
One of the most notable caves, Manjanggul, contains rare spiral-like mineral formations that seem to defy gravity as they grow in different directions. These deepest sections harbor specialized animals found nowhere else, creatures that have adapted to complete darkness.
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