Nishiizu Geosites: Timeless Coastal Landscapes
Nishiizu Geosites: Timeless Coastal Landscapes
The Izu Peninsula Geopark, recognized as a UNESCO Global Geopark in 2018, reveals the powerful story of this coastline’s volcanic past. In Nishiizu, dramatic seaside cliffs expose ancient underwater strata, shaped over millions of years. These natural cross-sections, combined with sweeping ocean views and untouched landscapes, invite you to slow down, observe, and reconnect with the quiet beauty of nature.
Dogashima
Otago Beach
Tensodo
Sculpted by Time: White Volcanic Ash Layers
Sculpted by Time: White Volcanic Ash Layers
In Dogashima, striking layers of softly folded white volcanic ash trace the cliffs, quietly revealing the area’s deep geological history. Nearby, the Tensodō (Sky Cave) has been shaped over time by the rhythm of the waves, creating a natural cathedral of light and stone. View it from the sea on a tour boat or stroll along the coastal boardwalk for a different perspective. Guided geo-tours are also available, offering deeper insight into this remarkable landscape.
Koganezaki
Tensodo Cave
Tensodo Cave
Explore the Natural Geosites of Nishiizu
Explore the Natural Geosites of Nishiizu
Nishiizu’s geosites reveal a landscape shaped by volcanic forces, shifting seas, and the slow passage of time. From dramatic coastal cliffs to rare geological formations, each site tells a quiet story of how this coastline was formed. Wander, observe, and experience nature at its most elemental.
The Golden Cliff of Koganezaki
As the sun begins to set, the cliffs of Koganezaki glow in rich gold tones, the result of ancient volcanic activity beneath the surface. From the observation point, sweeping views stretch across the sea toward Mt. Fuji and the Amagi mountain range.
Sanshirojima Islands
From one angle you’ll see three islands. From another, four. Sanshirojima’s shifting silhouette has fascinated visitors for centuries. During low tide from spring to early autumn, a natural sand path appears, allowing you to walk across the sea to the islands themselves
Tensodo Sky Cave
Another striking landscape is the Tensodo (Sky Cave), a dramatic sea cave carved by relentless waves over time. Visitors can admire the open ceiling and shifting light from a sightseeing boat or along the coastal boardwalk. Geo-guided tours are also offered daily for those who want a deeper look into the area’s natural history.
Rising Rocks Along the Coast
Towering rock columns stand upright along the coast, marking the paths where magma once pushed upward from the ocean floor. These powerful formations create a striking coastal landscape that feels both raw and timeless.
