The Shimoda Area offers some of the most spectacular sights of old volcanic deposition and erosion in the eastern coast of Izu peninsula. At Tsumekizaki Cape, you can see a vast number of columnar joints that area a part of a ‘sill’ a volcanic rock plate that is formed when magma ascending upward spreads between strata and cools off. Though Tsumekizaki is smaller, you will find a strong resemblance with the famous Giants Causeway World Heritage Site in Northern Ireland. The Ebisujima island is a small island that was thrust above ground through crustal uplift, and shows two distinct layers–sub-aqueous volcaniclastic debris and spectacular striped layers of pumice and ash. The contrast between these two depositions is also striking.
At Kakisaki Bentenjima you can find beautiful cross lamina depositions that originated due to submarine ash and pumice deposition several million years ago.
Ryugyu Kutsu is a large sea cave with its top eroded away through erosion. There is an entrance into the cave from the land, and you can enjoy the colors of the rocks and the sea. The nearby Toji Sand Skiing Ground is a slope where sand is deposited naturally by the winds. It is a popular spot for sliding down the sand.
In addition, the Shirahama Shrine with a 2100 year old juniper tree and a history of worshipping volcanic deities, and the histric town of Shimoda are interesting spots to visit.