The Izu Peninsula juts into the Pacific south of Mount Fuji, formed over millions of years by volcanic islands colliding with Honshu, a geological origin so distinctive that the entire peninsula is designated a UNESCO Global Geopark. Its dramatic coastlines range from the rugged cliffs and sea caves of the west to white-sand beaches in the south, while inland valleys grow Japan’s finest wasabi, and celebrated onsen towns like Atami and Shuzenji have drawn bathers for centuries, all within a couple of hours of Tokyo.
🗓️ At a Glance
| Location | Izu Peninsula, Shizuoka |
| Hours | Always accessible |
| Admission | Free to explore; attractions vary |
| Time needed | Full day to multiple days |
| Best time | Year-round; early summer beaches, winter clear views |
What to See
- A UNESCO Global Geopark born of colliding volcanic islands.
- Dramatic west-coast cliffs and southern white-sand beaches.
- Celebrated onsen towns including Atami and Shuzenji.
- Inland wasabi valleys and coastal seafood towns.
Combine Your Visit
- Combine with Dogashima Sea Caves on the west coast.
- Pair with Shuzenji Onsen in the interior.
- Read our Shizuoka overview .
Getting There
- By train: JR/Izukyu lines serve the east coast from Atami down to Shimoda.
- By car: the most flexible way, essential for the wilder west coast.
Tips
Trains conveniently serve the east coast, but the peninsula’s wilder western side has limited public transport, so rent a car if you want the full loop with its sea caves and sunset coastlines. Izu rewards an overnight stay or two — pairing a day of coastal sightseeing with an evening in an onsen town is the classic way to enjoy it.
