Umi-no Hotel Isaba

Heda Onsen Umi No Hotel Isaba

📍 3878-20 Heda , Numazu, Shizuoka, 410-3402, JapanShow on map

Very Good
535 Reviews
4.2
  • Breakfast & dinner
  • High-end onsen
  • Jacuzzi
  • Mountain views
  • Onsen
  • Onsen for couples
  • Onsen for families
  • Open-air bath
  • Private onsen
  • Private onsen close to Tokyo
  • Private onsen in the room
  • Sauna
  • Sea views
  • Tattoos allowed

Availability

Select your dates to see availability.

Tatami room with low table and adjacent bed area
Japanese Room with Bedroom (Matsubara Tooku)
Private wooden bath by large windows overlooking the sea
Bedroom with Private Bath and Ocean View (Mount Fuji View)
Private open-air bath with ocean view
Ocean View Room with Open-Air Bath
Private bath by windows overlooking the sea
Japanese-Style Room with View Bath (Shizuka no Umi)
Dining table and chairs beside large room windows
Japanese Room Ocean View Non-Smoking (The Sea Is Vast)
Guest room with two beds and tatami floor
Twin Room Ocean View Non-Smoking (Akane no Uta)
Private round bath on balcony facing the sea
Japanese-Western Room Ocean View Non-Smoking (Akane no Uta)
Sunset ocean view from tatami room window
Japanese-Western Room Panoramic Sea and Mount Fuji View (Azure Fuji)
Two beds in a tatami-style guest room
Japanese-Western Room Non-Smoking (Matsubara Tōku)
Private bath facing the ocean at sunset
Japanese Corner Suite with Stone Observation Bath, Ocean View, Non-Smoking (Mikazuki no Ma)
Silhouette by window overlooking the ocean
Japanese-Style Room Ocean View (Ai no Uta)
Silhouette by window overlooking the ocean
Japanese-Western Room Ocean View (Ai no Uta)
Private bath beside windows overlooking the sea
Japanese Room Ocean and Sunset View (Sea of Serenity)
Two beds in a ryokan guest room
Standard Twin Room Ocean View Non-Smoking (Akane no Uta)
Private square bath by windows overlooking the sea
Japanese-Western Room, Ocean View, Non-Smoking (Sea of Tranquility, Observation Bath)
Private open-air wooden bath with ocean view
Japanese-Western Room with Open-Air Bath and Ocean View, Non-Smoking
Sunset ocean view from room window with two chairs
Japanese-Style Room with Scenic Bath and Ocean View, Non-Smoking (Sea of Tranquility)
Silhouette by window overlooking the ocean
Japanese-Western Room Ocean View Non-Smoking (Oceanfront Indigo Poem)
Private open-air bath on balcony with ocean view
Japanese-Western Room Ocean View Non-Smoking (Akane no Uta)
Silhouette by window overlooking the ocean
Japanese Room Ocean View Non-Smoking (Poem of Indigo)
Ocean and mountain view through room windows
Japanese-Western Room Ocean View (Azure Fuji)
Silhouette by window overlooking the ocean
Ocean View Room Non-Smoking
Sunset ocean view from room window with two chairs
Japanese Room Ocean View Non-Smoking
Open-air bath on balcony with ocean view
Japanese-Western Room with Open-Air Bath and Ocean View
Japanese Room Ocean View Non-Smoking
Tatami room with sofa, chairs, and low table
Japanese-Western Room Ocean View Two Baths (Akane no Uta)
Private bath by windows overlooking the sea
Room with View Bath (Shizuka no Umi)
Private bath by windows overlooking the sea
Ocean View Room with Scenic Bath (Shizukno Umi)
Person silhouetted by a window overlooking the sea
Ocean View Room (Ai no Uta)
Private bath by large windows overlooking the sea
Japanese Style Room Stone Bath Ocean View
Tatami room with low table and chairs by window
Japanese Room Oceanfront (Ai no Uta)
Twin beds in tatami room with ocean view
Japanese-Style Room Oceanfront (Ai no Uta)
Twin beds in a guest room with window seating
Standard Twin Room

Overview

Isaba Ryokan has welcomed travelers for nearly 40 years, offering a peaceful retreat along the coast of Heda Port. This unique location lets you enjoy sweeping views of Suruga Bay, where the sea meets the sky in every direction. After a major renovation in 2020, the ryokan offers a fresh experience while preserving its soul—the unforgettable scenery remains unchanged.

From the moment you arrive, the staff greets you with warmth and care. Whether you’re traveling to celebrate a special occasion or simply want to get away from everyday life, Isaba helps you enjoy your time with purpose and ease.

Accommodation

Isaba offers several types of rooms, each designed to make the most of the sea views. You can wake up to the sound of waves, soak in your private bath while watching the sunset, and relax in a quiet space that feels far from the rush of daily life.

Some rooms feature a barrel-style open-air bath, others include a stone-built indoor bath, and many offer both. Choose from Western-style twin rooms, Japanese-style rooms with futons, or a blend of both.

Popular options include:

  • Umi wa Hiroi na: A corner suite with both indoor and outdoor baths, plus in-room dining for two.
  • Mikazuki-no-Ma: A room with a large stone bath and semi-double beds, perfect for a slow-paced getaway.
  • Konpeki no Fuji: The only room where you can see Mount Fuji from your bath, ideal for special occasions.
  • Akane no Uta: Newly renovated, with twin or hybrid styles and dual bathtubs.
  • Shizuka no Umi: Featuring a stone bath and a sea-facing counter space, available with beds or futons.
  • Matsubara Tooku: Located near the bath floors, this room offers views of the sea and Mount Fuji.
  • Ai no Uta: On the top floor, you can enjoy the deep blue sea stretching out below.

Dining

Dining at Isaba centers around the sea. The ryokan serves fresh seafood caught in Heda’s traditional bottom-trawl fishing grounds. The menu changes with the seasons and daily catches, so every meal highlights the freshest possible ingredients.

You’ll enjoy full-course kaiseki meals served in your room or in a private dining space. Meals feature:

  • Local deep-sea fish, known for their delicate flavor and rarity.
  • Signature dishes like steamed spider crab, grilled prawns, and sashimi of rare species.
  • Sea-to-table freshness that showcases the rich marine life of Suruga Bay.

Some ingredients are difficult to source outside of Heda, making your meals here truly one-of-a-kind. If you want to try something extra, you can order additional seafood dishes in advance.

Onsen and Wellness

Isaba lets you bathe while floating above the sea. Every bath in the ryokan opens to the ocean, giving you unmatched views while you soak. Choose from public baths or private open-air baths, all using the mineral-rich waters of Heda Onsen.

You’ll find:

  • Fujimi-no-Yu: A gender-separated public bath with a relaxing outdoor section. Enjoy early morning or evening access depending on your stay.
  • Tennyo-no-Yu: A larger indoor bath offering a different view and atmosphere.
  • Four private open-air baths: Each offers its own charm and view. You can use these once for free during your stay.

These baths include:

  • Yūhi no Kagayaki: An open, double-window bath with sunset views.
  • Fuji no Yuki: The only bath with direct views of both Mount Fuji and the coastline.
  • Nami no Shirabe and Shio no Kaori: Spacious stone baths where you can sit back and watch the sea stretch endlessly.

Guests with Tattoos

If you have tattoos, you’re still welcome to use the onsen at Isaba. While some public baths in Japan have restrictions, Isaba allows you to enjoy private open-air baths with full privacy. Simply reserve your bath after check-in.

Facilities

The ryokan’s public spaces help you relax outside your room. Designed to bring you closer to the sea, the open-plan lobby and lounge area gives you a wide view of Suruga Bay. You can sip drinks on the terrace, watch the sunset, or read quietly in the lounge.

Other features include:

  • Gift shop: Stocked with local specialties and cold drinks.
  • Karaoke room: Available for private rental in the evening.
  • Smoking room: A designated indoor space, as all other areas are non-smoking.
  • Esthetic salon: A private, appointment-only spa where you can book a treatment in advance.

The lobby also features a live tank with local spider crabs—if you order crab, it’s prepared fresh from here.

Activities

Even just watching the sea is soothing, but the area around Isaba offers more to explore. You can visit viewpoints across the Izu Peninsula or drive to nearby towns like Numazu. On clear days, you’ll spot Mount Fuji across the water, creating picture-perfect moments from sunrise to sunset.

Back at the ryokan, you can stroll the halls, relax in the lobby, or spend your evening in the terrace lounge with a drink. The atmosphere encourages you to pause and enjoy the natural beauty around you.

Additional Features

  • Free private use of open-air baths (once per stay)
  • Free parking available on site
  • Luggage storage before check-in or after check-out
  • Flexible mealtimes based on your arrival
  • Full non-smoking policy in rooms and dining spaces
  • Advance orders for extra dishes available (subject to availability)

Location of the ryokan

Umi-no Hotel Isaba

📍 3878-20 Heda , Numazu, Shizuoka, 410-3402, Japan

Ryokan Location on the Map

Carefully Selected Ryokans

Each ryokan on our site is carefully selected by our team to ensure an authentic, exceptional stay. Our team carefully reviews, curates, and translates each detail, offering you a clear and trustworthy guide to Japan’s most exceptional traditional inns.

📚 Information collected by Mari Ryu.

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