MANGETSU

A space inspired by Japanese mythology, harmonizing with Black Pine Forest

Surrounded by pine trees, enjoy hot springs, saunas, and mud packs. A new bathing space, "MANGETSU" (Full Moon), opens on August 12th.

The new bathhouse, "MANGETSU," employs a raised-floor construction and is designed to harmonize with the surrounding pine forest landscape. By aligning the view with the height of the trees, it creates a spacious and open atmosphere that makes you feel enveloped in nature.

Both the open-air and indoor baths offer panoramic views of the sprawling pine forest, and the design evokes a sense of oneness with nature. The light and the appearance of the water surface change depending on the time of day, allowing you to enjoy a different atmosphere in the morning, evening, and night.
Furthermore, the new bathhouse features a spatial design inspired by "Takamagahara," the realm of the gods in Japanese mythology. While inheriting the worldview of "Hot Spring "SHOSENKYU"," which is themed around the moon, such as "TSUKUYOMI" and "SHINGETSU," it will create a bathing experience full of the charm of Miyazaki, the birthplace of mythology.


Due to renovation work on the hot springs, the operating hours of Hot Spring "SHOSENKYU" "TSUKUYOMI" will be changed as follows.

Wednesday, September 30, 2026 Business Hours
[TSUKUYOMI] Opening hours: 6:00 - 9:00 (last entry 8:30), 12:00 - 23:30 (last entry 23:00)
[SHINGETSU] Opening hours: 6:00 AM - 12:00 PM, 3:00 PM - 11:30 PM (Last entry 11:00 PM)
[MANGETSU] Opening hours: 6:00 AM - 12:00 PM, 3:00 PM - 11:30 PM (Last entry 11:00 PM)

Introducing our new original mud pack made with hot spring ingredients

Introducing a new mud pack using the hot spring ingredients from Hot Spring "SHOSENKYU". It gently removes old dead skin cells and impurities, leaving your skin moisturized and firm. The mineral-rich natural mud promotes blood circulation and conditions the skin, leaving it smooth and supple. Enjoy a luxurious beauty experience that refreshes you both inside and out, thanks to the synergistic effect of the hot springs.
We use Shigaraki ware water basins as containers for the mud packs. The beautiful glaze, which is neither blue nor green, complements the gray mud pack and creates a sophisticated atmosphere.

 

A dry sauna with automatic löyly, enveloped in the warmth of wood.

A dry sauna with a sense of openness, enveloped in the warmth of bright wood.
The multi-tiered bench seats are made of cypress wood, allowing you to relax and unwind while being soothed by the subtle scent of wood.
Natural light streams in through the high-positioned windows, creating a comfortable and open atmosphere despite being a sauna room. Furthermore, an automatic löyly system is installed, which pours water onto the sauna stones at set intervals. The heat and steam envelop your body, leading to a pleasant sweat.

 

An open-air bath surrounded by a pine forest, offering a sense of freedom.

Enjoy a relaxing soak in the open-air bath while feeling close to the rich natural beauty of the pine forest.
The bathtub is designed in an inverted L-shape to offer expansive views, and the floor is tiled with a texture reminiscent of natural stone. Enjoy a moment of relaxation while gazing at the pine forest stretching out before you.
At night, the pine forest is illuminated, creating a magical atmosphere quite different from the daytime. Enjoy a special time with lights that change color according to the season and events.

Basic information

Opening hours6:00 AM - 11:00 AM (Last entry 10:30 AM / Male only)
15:00 - 23:30 (Last entry 23:00 / Women only)
*Gender rotation system depending on time slot
FeeFree for guests staying at PHOENIX SEAGAIA OCEAN TOWER
Remarks*Guests staying at the hotel will be required to pay a hot spring tax of 150 yen per person per night at the hotel
*Bathing is a perk available from check-in to check-out
*You will need your room key card to enter
*Please note that we may be closed for maintenance. Please contact us in advance or be aware of this beforehand
*For guests staying PHOENIX SEAGAIA OCEAN TOWER only
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