Japan-based Palace Hotel Group is to open the 290-bedroom Palace Hotel Tokyo in the country's capital on 17 May.
Located within Tokyo's Marunouchi district, the luxury hotel is to anchor a US$1.2bn (£751m, 918m euro) mixed-use development and will house 10 restaurants and bars, as well Japan's first spa to be branded after Evian - the French mineral water company.
The fifth-floor, 1,200sqm (12,900sq ft) Evian spa will have five treatment rooms, a VIP treatment suite and separate ladies and men relaxation areas. Wet areas include include heated baths, reclining baths, cold plunge pools and a selection of saunas.
A health and fitness suite equipped by Technogym and Life Fitness and a 20m indoor swimming pool will also feature.
The spa's design is a metaphorical reflection of the journey Evian natural mineral water takes through the Alps, from the loose stone garden at reception signifying the water's source (at the beginning of the stream on the top of the mountain) to the ceiling of the treatment rooms reflecting ripples in a pond.
The treatment menu - also inspired by the Evian brand - will feature treatments themed around "celestial restoration", mineral enrichment, nourishment and vitality. Products will be supplied by Omnisens and Anne Semonin.
The signature treatment, called The Vitalising Signature, has been created exclusively for the spa. It starts off with Japanese trigger point-style bodywork to improve the flow of Qi throughout before a Swedish-style deep tissue massage is applied to release tension and 'trigger' the body to naturally restore its own balance from within.
Outside the spa, hotel guests will be able to enjoy a culinary journey, as the hotel has announced its ambition to gain Michelin stars at several of its 10 restaurants.
On the hotel's sixth floor is the French restaurant Crown, headed by Patrick Henriroux, who has maintained a two-star restaurant at La Pyramide in Vienne, France for more than 10 years.
Japanese Shinji Kanesaka - a two-star Michelin chef - will be responsible for a total of four restaurants within the hotel, while Chugoku Hanten Group, operator of Tokyo's two Michelin-starred Fureika, will run the Cantonese-themed eatery Amber Palace on the fifth floor.
Takashi Kobayashi, president of Palace Hotel Group, said: "There is only one Tokyo, and there will only be one experience like the Palace Hotel.
"From the Aji stones at our entrance to the linens in our guest rooms, from the omotenashi at first encounter to the general management, we're celebrating an unfiltered appreciation of our country's culture.
"As for our restaurants, our goal is not simply to complement our guests' accommodation experience but to create several, new dining icons in this city - a constellation of opportunity."
The new hotel succeeds two previous hotels - the Hotel Teito and Palace Hotel - that occupied the same site from 1947 and 1961 respectively. Each has been razed in order to make way for its successor.
