Nishi Izu is a scenic coastline that goes back in time and presents some of the oldest landforms in the peninsula. The appreance of this coast is in striking contrast to the much younger eastern coast of Izu. The long seashore is also famous for brilliant sunset colors and views of the distant Mt. Fuji across the Suruga Bay in clear days.
Dogashima is probably the most famous site, as far as tourist numbers go. You can see spectacular cliffs formed by submarine pumice and ash deposition. Several intriguingly shaped small islands (or sea stacks) appear along the coast, some of them are the ‘Turtle’ the ‘Snake’ and the ‘Elephant’ islands–presumably named for their resemblance to this animals. The Tombolo effect, where a rocky path of land emerges between two separated lands during low tides, is also visible at this area. Koganezaki Cape is a large rocky cliff shaped like a giant horse-head, where rocks colored orange-yellow due to thermal spring weathering forms a great backdrop for sunset.
The historic Toi Goldmine site is also located in this area. The Toi gold deposit was created by hydrothermal deposition of gold–where superheated water reacted with gold in the rocks.
In addition, Ishiki area of Nishi Izu Town is the location where the oldest outcrop of the peninsula is found. This outcrop, now located on the land, is actually a basaltic pillow lava that formed during sub-aqueous lava flow.