Why Shizuoka Is an Onsen Lover's Paradise
Shizuoka Prefecture sits on the Izu Peninsula — one of the most geothermally active regions in all of Japan. Beneath its mountains and valleys, volcanic heat warms underground water to create thousands of natural hot springs. This geological gift has given rise to a rich onsen culture, with traditional ryokan inns, public bathhouses (sento), and open-air baths (rotenburo) that draw visitors from across the country. Here's a comparison of the three most celebrated onsen areas.
Atami: The Gateway Onsen Town
Perched on a hillside overlooking Sagami Bay, Atami is the closest major onsen resort to Tokyo — just 35 minutes by Shinkansen from Tokyo Station. This accessibility has made it a weekend institution for city dwellers for well over a century.
What Makes Atami Special
- Spring water quality: Atami's waters are high in sodium chloride, known to warm the body deeply and moisturise the skin.
- Hotel variety: Ranges from grand resort hotels with ocean-view pools to intimate boutique ryokan.
- Atami MOA Museum of Art: A world-class art museum built into the hillside with stunning bay views — a perfect half-day addition to an onsen stay.
- Atami Geisha culture: One of the few towns in Japan where traditional geisha entertainment (ozashiki) is still available through ryokan bookings.
Best For
Couples seeking a romantic weekend escape, first-time onsen visitors, and those who want easy access from Tokyo.
Shuzenji: The Timeless Mountain Retreat
Tucked into the mountains of the central Izu Peninsula, Shuzenji feels worlds away from modern Japan. The town clusters around a 1,200-year-old Buddhist temple and the Katsura River, with a famous ashiyu (foot bath) in the middle of the riverside promenade.
What Makes Shuzenji Special
- Atmosphere: Lantern-lit streets, bamboo groves, and the sound of the river create an almost cinematic sense of old Japan.
- Spring water quality: Sodium bicarbonate springs known as "bijin no yu" (beauty waters) for their skin-softening properties.
- Ryokan experience: Shuzenji has some of Izu's most traditional ryokan, where multi-course kaiseki dinners and private garden baths are the norm.
- Hiking access: Trails from town lead into the surrounding forested hills, ideal for an easy morning walk before a long soak.
Best For
Travellers seeking an authentic, unhurried ryokan experience; those who want cultural depth alongside their hot springs.
Ito: Seafood, Springs & Coastal Walks
Ito sits on the eastern coast of the Izu Peninsula, where mountain valleys meet the Pacific. It has one of the highest numbers of hot spring sources of any town on Izu, and its accommodation ranges from large seaside resort hotels to small family-run minshuku guesthouses.
What Makes Ito Special
- Spring variety: Over 800 hot spring sources flow through Ito, feeding baths of different temperatures and mineral compositions.
- Seafood: Ito's port brings in outstanding fresh fish — the combination of onsen and fresh lobster or abalone dinners at a seafood ryokan is hard to beat.
- Jogasaki Coast access: The dramatic lava cliff coastline is a short drive away, offering one of Izu's best coastal hikes.
- Tamatsukuri Onsen Street: A charming shopping and café street running through the centre of town, ideal for evening strolls.
Best For
Families and groups who want variety — good food, outdoor activities, and onsen together in one base.
Quick Comparison
| Feature | Atami | Shuzenji | Ito |
|---|---|---|---|
| Access from Tokyo | 35 min (Shinkansen) | ~90 min (train + bus) | ~100 min (train) |
| Atmosphere | Lively resort town | Quiet, historical village | Coastal town with beaches |
| Best for | Romantic weekends | Traditional ryokan stays | Seafood & outdoor activities |
| Spring type | Sodium chloride | Sodium bicarbonate | Multiple types available |
Onsen Etiquette: Key Rules for First-Timers
- Wash and rinse thoroughly at the shower stations before entering the communal bath.
- Towels stay out of the water — keep your small modesty towel folded on your head or set it aside.
- Tattoos are prohibited in most public baths; check in advance if this applies to you.
- Don't submerge your head.
- Speak quietly and avoid making it a social occasion — the onsen is a place of relaxation.
Whichever town you choose, an onsen stay in Shizuoka's Izu Peninsula is one of Japan's most restorative travel experiences. Come tired, leave renewed.