Osezaki is Japan’s best-kept secret. Tucked away on the rugged Izu Peninsula, this sanctuary offers stillness, spirit, and spectacular natural beauty. With its serene coastline, lush volcanic terrain, and sparkling waters teeming with life, Cape OSE is a transformative escape for nature lovers, divers, and seekers of inner peace.
Cape OSE – Dive Into Tranquillity
"Where the sacred mountain meets the soul of the sea."
Osezaki is Japan’s best-kept secret. Tucked away on the rugged Izu Peninsula, this sanctuary offers stillness, spirit, and spectacular natural beauty. With its serene coastline, lush volcanic terrain, and sparkling waters teeming with life, Cape OSE is a transformative escape for nature lovers, divers, and seekers of inner peace.
Stand at the edge of Osezaki Bay and witness the majestic silhouette of Mount Fuji rising in the distance.
This is one of the rare places where you can watch the sacred mountain meet the sea. The serenity of the bay and the spiritual energy of Fuji create a memory that lingers—and calls you back.
“Underwater Osezaki is my new Favourite Place to Dive!” – Michael AW
Beneath the calm surface of Osezaki Bay lies one of Japan’s most captivating marine ecosystems. Divers and snorkelers return in every season to explore its vibrant underwater landscapes, unique slopes, and the rich biodiversity of Suruga Bay.
Inside the Bay – Calm Waters, Lush Life:
- Seaweed forests teeming with damselfish and frogfish
- Nudibranchs, pygmy seahorses, and rare deep-sea critters
- Dark volcanic sands are ideal for macro photography
- Meditative, beginner-friendly dive conditions
Cape front and Outer Bay – Wild & Wonderful:
- Dramatic drop-offs and soft coral forests
- Up to seven species of fairy basslets (Anthias)
- Encounters with mola mola, blanket octopus, rays, oarfish
- Perfect for adventurous divers and marine biologists
Every dive at Cape OSE is an encounter with the raw, undisturbed pulse of the ocean—alive, pristine, and endlessly fascinating.
Experience the harmony of nature and spirituality as you walk the shrine trail or simply take in the peaceful surroundings of Osezaki.
Osezaki is home to a centuries-old shrine (625 AD) and steeped in local folklore, Cape OSE isn’t just a destination—it’s an experience. Wander coastal trails, connect with the elemental beauty of the landscape, or simply sit and listen to the waves in quiet reflection.
Explore Cape OSE's spiritual heart through:
- Ancient cliff-side shrines
- Quiet forest trails
- Meditative viewpoints overlooking the sea
- Sunset rituals and seasonal ceremonies
- Ancient mysterious lake filled with aquatic life
Relax in comfort at Nature Inn OSEKAN, where traditional Japanese hospitality meets breathtaking ocean views.
Just steps from the shoreline, Nature Inn OSEKAN offers quiet luxury tailored to divers, nature seekers, and wellness travelers
Why Stay at Nature Inn OSEKAN :
- Elegant Japanese-modern rooms with views to the sea & Mount Fuji
- On-site dive gear facilities and expert guidance by Mikiya Wakamatsu
- Restorative hot baths and cuisine by celebrity chef Tetsuto Kajihara
- Wellness offerings: yoga, tea rituals and post-dive recovery
Every detail at Nature Inn OSEKAN is designed to support your transformation through nature and mindful living.
Whether you're called by the rhythm of the ocean, the tranquility of the forest, or the presence of mount Fuji, the Cape OSE experience is unlike any other.
Book your escape at Nature Inn OSEKAN with Ocean Geographic:
Dive Deeper. Breath Slower. Return Charged
Explore our exclusive dive packages:
- 1. Interlude Package (3 Nights / 6 Dives) – 1400 USD
- 2. Immersion Package (4 Nights / 8 Dives) – 1600 USD
- 3. Indulgence Package (5 Nights / 10 Dives) – 1800 USD
- 4. Intense Package (6 Nights / 12 Dives) – 2000 USD
- 5. In-Depth Package - Four Seasons (Four x Four Immersion Packages over 25 months) – 5600 USD