A top-floor panoramic public bath overlooking the keep of Okazaki Castle, and a spectacular sauna with a Harvia stove
Aichi Okazaki City
"Okazaki New Grand Hotel" is a city hotel in Koseicho, Okazaki City, Aichi Prefecture. Set along the banks of the clear Otsu River and in an excellent location next to Okazaki Castle Park, it offers sweeping views from the public bath on the top, 9th floor, where you can look out over the keep of Okazaki Castle and the rich natural scenery of the Otsu River. The public bath features a renovated glass-walled observation sauna and cold plunge bath, both updated in 2025 with a Harvia stove. Guests can enjoy the finest relaxation while taking in the same eye-level view as the castle keep.
TypeSpecialty Bath
Located on the top, 9th floor, this scenic bath offers expansive views through large windows of the keep of Okazaki Castle, the lush gardens of Okazaki Park, and the clear Otsu River. While watching the beauty of sunrise or the illuminated castle from dusk into night, you can slowly relieve your travel fatigue. Alternating use for men and women by time of day.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity4people
A glass-walled observation sauna renovated with the addition of a genuine Harvia sauna stove. From inside the sauna room, you can enjoy beautiful seasonal views of the keep of Okazaki Castle and the clear Otsu River. In a comfortable space filled with the warmth of wood, you can savor a luxurious sweating experience while being wrapped in the gentle convective heat.
Water QualityTap Water
Capacity2people
A compact cold plunge bath installed very close to the sauna room. Although it uses tap water, its pleasantly cool temperature changes with the seasons, allowing you to gently and comfortably cool down your heated body. Sized for about 2 people, it lets you quietly tighten and refresh your body.
Closed Days: None
515-33 Koseicho, Okazaki City, Aichi Prefecture 444-0052 2F
Gender Access
Gender Separated
Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.
Learn moreA top-floor panoramic public bath overlooking the keep of Okazaki Castle, and a spectacular sauna with a Harvia stove
Aichi Okazaki City
"Okazaki New Grand Hotel" is a city hotel in Koseicho, Okazaki City, Aichi Prefecture. Set along the banks of the clear Otsu River and in an excellent location next to Okazaki Castle Park, it offers sweeping views from the public bath on the top, 9th floor, where you can look out over the keep of Okazaki Castle and the rich natural scenery of the Otsu River. The public bath features a renovated glass-walled observation sauna and cold plunge bath, both updated in 2025 with a Harvia stove. Guests can enjoy the finest relaxation while taking in the same eye-level view as the castle keep.
TypeSpecialty Bath
Located on the top, 9th floor, this scenic bath offers expansive views through large windows of the keep of Okazaki Castle, the lush gardens of Okazaki Park, and the clear Otsu River. While watching the beauty of sunrise or the illuminated castle from dusk into night, you can slowly relieve your travel fatigue. Alternating use for men and women by time of day.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity4people
A glass-walled observation sauna renovated with the addition of a genuine Harvia sauna stove. From inside the sauna room, you can enjoy beautiful seasonal views of the keep of Okazaki Castle and the clear Otsu River. In a comfortable space filled with the warmth of wood, you can savor a luxurious sweating experience while being wrapped in the gentle convective heat.
Water QualityTap Water
Capacity2people
A compact cold plunge bath installed very close to the sauna room. Although it uses tap water, its pleasantly cool temperature changes with the seasons, allowing you to gently and comfortably cool down your heated body. Sized for about 2 people, it lets you quietly tighten and refresh your body.
Closed Days: None
515-33 Koseicho, Okazaki City, Aichi Prefecture 444-0052 2F
Gender Access
Gender Separated
Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.
Learn more