Kokusai Kanko Hotel Tankaiso

♨️Seaside ryokan facing the Akashi Kaikyo Bridge, with radon hot springs and Awaji seafood

Hyogo · Kokusai Kanko Hotel Tankaiso

1

A Seaside Inn Overlooking the Akashi Strait

• 🌊Set in Iwaya Onsen at the northern tip of Awaji Island, the inn overlooks the point where Osaka Bay meets the Akashi Strait.
• 🌉From the rooms and public areas you can take in the Akashi Kaikyo Bridge, the Kobe night skyline and sunrise over the sea.
• 🛠️The interior was renovated in 2026, and the top-floor rooms with the best views were redone as comfortable Western-style rooms.

2

Iwaya Onsen with Bridge Views

• ♨️The spring is a simple weak radioactive (radon) spring, hypotonic, mildly alkaline and cool at the source, said to help with neuralgia, muscle and joint pain.
• 🌅There are two gender-separated baths, Hashimi-no-yu for men and Shiosai-no-yu for women, and both have an open-air bath.
• 🕒Bathing hours are 15:00–23:00 and 6:00–9:00 the next morning; the baths are for overnight guests only (no day visitors).

3

Ocean-View Western Rooms (48㎡ / 43㎡)

• 🛏️Twin-bed Western rooms come in two sizes, 48㎡ and 43㎡, with large windows looking out to sea.
• 🚿Every Western room has its own bath and washlet toilet, and the building has an elevator.
• 📶Free Wi-Fi throughout, plus a fridge, safe and individual air conditioning in every room; the whole property is non-smoking.

4

Tatami Japanese Rooms (12 / 10 mats)

• 🎋Japanese rooms of 12 and 10 tatami mats let you relax on the tatami while gazing at the sea and the Akashi Kaikyo Bridge.
• 🚽The Japanese rooms also come with a private bath and washlet toilet.
• 👘Yukata, towels, toothbrushes and hairbrushes are provided, and humidifiers and air purifiers can be borrowed free of charge (limited numbers).

5

Seasonal Awaji Seafood Kaiseki

• 🐟The signature dinner is the Awaji seasonal kaiseki centred on houraku-yaki, the local specialty made with a whole sea bream.
• 🚢Another popular plan features a boat platter of live sea bream sashimi caught in the Akashi Strait.
• 🍲From June to September there is an Awaji pike-conger (hamo) kaiseki, and from November to February a special three-year tiger pufferfish kaiseki with milt.

6

Breakfast and Services

• 🍚Breakfast is a classic Japanese spread with freshly cooked rice and miso soup, served at 8:00 or 8:30.
• 🍽️Dinner starts at 18:00, 18:30 or 19:00, and meals are served in the second-floor banquet hall rather than in your room.
• 🛍️A small shop sells Awaji souvenirs, there are drink vending machines, and kids' meals and allergy requests can be arranged in advance.

7

Nearby Sights

• 🦐Michi-no-Eki Awaji, a one-minute walk away, offers Awaji Island food right beneath the bridge.
• 🎮Nijigen no Mori, a short drive away, is a large park with outdoor activities based on anime and game worlds.
• 🌸Hyogo Prefectural Awaji Hanasajiki is also nearby, and a convenience store is about a three-minute walk.

8

Access and Pickup

• 🚗About 5 minutes by car from Awaji IC, with free parking.
• 🚌There is no train station on this part of the island; a free pickup is available (reserve in advance) from the Awaji IC or Uzaki bus stops, or Iwaya Port for the Akashi–Iwaya high-speed boat—just call on arrival.
• 🕒Check-in is 15:00 and check-out is 10:00.

3

Ocean-View Western Rooms (48㎡ / 43㎡)

• 🛏️Twin-bed Western rooms come in two sizes, 48㎡ and 43㎡, with large windows looking out to sea.
• 🚿Every Western room has its own bath and washlet toilet, and the building has an elevator.
• 📶Free Wi-Fi throughout, plus a fridge, safe and individual air conditioning in every room; the whole property is non-smoking.

4

Tatami Japanese Rooms (12 / 10 mats)

• 🎋Japanese rooms of 12 and 10 tatami mats let you relax on the tatami while gazing at the sea and the Akashi Kaikyo Bridge.
• 🚽The Japanese rooms also come with a private bath and washlet toilet.
• 👘Yukata, towels, toothbrushes and hairbrushes are provided, and humidifiers and air purifiers can be borrowed free of charge (limited numbers).

Show more (6 more)▾

A seafront inn where you can enjoy the Akashi Kaikyo Bridge and Kobe night views from both your room and the hot spring, along with Awaji seafood kaiseki. Note that meals are served in a banquet hall rather than in-room, and there are no barrier-free rooms.

#AwajiIsland#IwayaOnsen#HyogoRyokan#AkashiKaikyoBridge#OceanViewRyokan#RadonOnsen#AwajiRyokan

* This introduction was compiled from information published by each property (official website and similar sources), so some details may differ from what you find on the day. It is AI-assisted and can contain errors — please check the official website and the details shown at booking before you reserve.

From onsen etiquette to check-in — the things worth knowing first.

What are the check-in and check-out times at Kokusai Kanko Hotel Tankaiso?

Check-in starts at 15:00 and check-out is by 10:00.

Where is Kokusai Kanko Hotel Tankaiso located?

It is in Awaji. Address: 3559-4 Iwaya.

What is the cancellation and refund policy?

Free-cancellation deadlines vary by rate plan and are shown with each room. Cancelling before the deadline gives a full refund.