Love the old 50's/60's style decor, and the absolutely outrageous design concept. 4 separate buildings on a small peninsula with tunnels cut through the rock connecting the 4 buildings. We stayed in a building with a view of the harbour. Very spacious room (10 mats to my recollection, with an annex of 4 mats), with ensuite and toilet. The views were good and the sea cave onsens were amazing. The buffet dinner and breakfast was extensive and really not too bad considering the scale of it all. The vibe was cruise ship on land. Other great things - the indoor amusement arcade, indoor shopping arcade in one of the tunnels, onsite combini, and of course the onsens. There is also the outrageous escalator which ascends some 80 metres through the rock. Absolutely worth visiting for the vibe, the decor, the architectural concept and the cruise ship on land feel. The description of "Bond Villain lair" which has been used definitely fits.

Not a lot to say. If you don't like the old style design and furnishings, and like shiney new places this is not for you. Perhaps one thing to note is that the boat access from the pier stops after 7pm, so the option of dining in town and coming back would mean an early dinner, however the buffet dinner has to be had for the experience.

What I liked may be what you won’t: this place is aging. Like rural Japan, it’s has remained almost unchanged since the bubble burst in 1990ish and so, this is time travel in another era, the Showa era when Japan was booming. Long, odd tunnels that connect onsens and 4 buildings built atop a rocky island, man, this is Sean Connery’s James Bond material. Our view over the ocean was spectacular and for that alone, I would have stayed longer. Not to expensive either.

As many for others establishments, failure to instruct foreign customers on good manners, particularly in the onsens. Food just ok, wait after the rush for the buffet.

This is a huge resort, like a small village, sitting on the peninsula, from the foot of the mountain to the top of the mountain. There are several buildings connected by tunnels and the longest escalator in Japan. Due to a schedule change, I extended my stay and experienced both the main building, which faces the port, and the Nissho Kan building, which faces the ocean. Personally, I love the Nissho Kan view much better. The cave onsen is the highlight. and do not miss the observatory on top. The hotel provides shuttle ferries and buses, which is absolutely helpful. If you want to see the tuna market auction early in the morning, take the 6:40 shuttle bus.

There are not many choices for restaurants, and the buffet for breakfast and dinner is even below average. The public area is out of date.

You get to the hotel via a ferry boat shaped like a turtle! It runs often so you are always connected to the main pier next to the train station. The location is one of the highlights of the hotel. In the middle of the sea, you can go to the top and be amazed by the views (ocean, forest, mountain....). The best part of course is the onsens. The hotel has been built on top of the natural hot springs that created the famous onsen of which the hotel is proud of. The best ones are the two overlooking the ocean (part indoor part outdoor). They are clean and full of amenities (creams, shower caps etc). The size of the room is generous and they provide bottles of water and snacks. They also give you yukatas and slippers to go around the hotel and trust me when I say that it is super huge!! You may get lost but it's fun to go and explore the areas. The buffet breakfast and dinner is full of choices. If you are vegan or vegetarian you will find many options and the food is tasty and fresh.

The hotel itself was supposed to be one of the most luxurious accommodations back in the 60s and you can actually picture its rooms back in the glorious days but now it needs a serious revamp. One or two onsen really needs to get fixed. Some areas are old/damaged and in disuse. Some facilities are closed. At the sunrise restaurant the food options are repetitive. Tattoo wearers are not allowed in the onsens however if you are able to cover them, then there is no problem. I have tattoos and I covered them with plasters and it was ok (also nobody checks). The thing is, the hotel is special also because of these flaws so I would still recommend it!

The hotel is composed of 4 buildings, and there are 5 onsens spreading around in the hotel. Two cave onsens are really amazing. Highly recommended to stay 2 nights. Buffets breakfast and dinner are good and there are variety of food to choose. Especially the expresso are really tasty. If you drive a car, some staff are stand ready in their parking lot to take you to hotel by shuttle bus. The last time is until 7:30pm. If you go out in the morning, they are ready at anytime to bring you to the parking lot. Very convenient.

The staff were wonderful and arranged for us to have dinner at the Japanese restaurant on site when we arrived very lste in the evening. The meal was a banquet! Restaurant staff were absolutely lovely too. The public baths are fantastic, they each even have their own stamp for you to collect on the necessary map. The hotel complex is huge! When I enquired about bathing rules in regards to tattoos I was told it was fine because I am not Japanese - meaning the cultural rules don't apply when you aren't part of that culture. Stunning views from our room. Fantastic buffet meals.

Although the hotel as a building is rather old-fashioned, the Japanese-style rooms with tatami and futon instead of beds, are very comfortable and we loved them. There is a transfer service by a small boat from the town to the hotel, which is very convenient, but stops relatively early (last boat at 19:15). The true highlight of the hotel are the two cave onsen, which offer a superb experience: soaking in the hot water and watching the ocean waves smashing the cliffs is an unforgettable treat! The proximity to the Kumano-Nachi Taisha shinto shrine is also a bonus.

There was no breakfast offered in the main hotel building.

Great size Japanese room (tatami, futon) with a gorgeous sunrise view. It's a feeling of the old era in Japan but with the huge all connected building compound and the food buffet, it feels like you're on a cruise! The food buffet for both dinner and breakfast had a wide variety of Japanese and international options. The dinner had a section to make your own hand roll and it's my most favorite section. Love the experience and it's very relaxing to just stroll around and try their multiple Onsen types. I love the cave Onsen, so beautiful ☺️

The buildings are slightly old and the connectors can be built better, but those adding on to the old Japanese era hype/ feel so it's ok!

The hotel location was probably the best I have ever stayed in, with our bedrooms overlooking and literally next to the ocean. We fell asleep to the sound of the waves and the onsen in the caves overlooking the ocean was incredible as well. The shear size and luxury of the hotel was like something out of a movie (White Lotus to be specific!)

It was a little bit outdated / tired and at times difficult to navigate / find one's room due to the shear size of the place - but on the other hand that kind of made it fun and unique at the same time! :-)

the location and staff are good and helpful

we stay for 1 night with 2 meals, the check-in (after 15:00)and check-out time (before 10:00) and the meal time (07:00-09:00 for breakfast /18:00-20:00 for dinner) are not allow you to enjoy the onsen service in convenience time slot, you may need wake up at early morning if you want to enjoy different onsen. Most of the onsen open for use in 05:00-12:00(but you need check-out before 10:00) /16:00-23:00. the water from bathroom is bad, the tube maybe too old, the water come out is yellow color, you need release the water around 2-3 mins then the water will be clear for shower.