Karatsu Genkai Underwater Observation Tower Hotels

"It was my first time checking into a hotel without staff on site. The hotel will send you an email with an entry code to get into the lobby. Once inside, there's a tablet you use to check in. After you snap a photo of your passport, you get connected to the hotel staff via video call to verify your identity. Then you will get your room code on the screen. Take a picture of your room code with your phone. The hotel is very roomy and very close to the station. "

"Very kind and the ryokan was so cute"

"I was a little wary staying at a shipping container hotel, but I was blown away by this place. Really everything was perfect about it. The room was spotless and had all the amenities you could need.The staff were very friendly and helpful, and were prepared to deal with a language barrier. It even has laundry and free light meals that were quite good! And all for a great price. Next time I'm in Karatsu this will he my go-to."

"This was an absolutely amazing experience! We stayed at D6. Beautiful, comfortable accommodations. Bathroom was so cute and nice! Woke up to a gorgeous sunrise and view of the water. Fun food experiences and activities. The staff was very helpful and everything was perfect! I would love to return!"

"Good and relax"

"Great hotel/hostel linked to a cafe, shop and cinema. The hotel was great overall, but by comparison to the rest of the facilities, the room felt a touch basic, if perfectly comfortableand spotlessly clean. Great location in Karatsu, within a 5 minute walk to the train station and on a great pedestrianised street full of great shops (mainly with pottery goods). Would totally recommend."

"The hotel is situated right next to the sea and the sunsets are stunning. The room is big and quite comfortable. My only complaint is the toilet had a continuous noxious odour that may be from the backflow or exhaust of other units. "