Sources for Euphoria Retreat
Every line on the Euphoria Retreat record, with where it came from, what kind of source it is and the date we read it.
Back to the record- Current as of
- 19 Aug 2026
- Last reviewed
- 19 Aug 2026
- Strongest evidence
- Certified
- Coverage
- Documented across 8 of 8 pathways.
Practical details and location
The practical details and the map point, 37.0680, 22.3740
The property’s own website
The property's own site: its name and its place are on the page
Safely managed drinking water, Greece, 2024: The World Health Organization reports 97 per cent of the population nationally using a safely managed drinking water service. This describes the country, not this property, and says nothing about what reaches a guest room here. It is recorded because it is the background against which a property's own treatment is worth publishing.
Regional data is context about the location. It does not establish conditions inside a room.
Ambient PM2.5 and PM10 near Mystras, Peloponnese, Greece, 30 days to 2026-08-17: Modelled ambient air over this location averaged 7.8 micrograms per cubic metre of PM2.5 and 14.4 of PM10 across the 720 hours to 2026-08-17, peaking at 17.6 PM2.5. The World Health Organization annual guideline for PM2.5 is 5. This is the outdoor air over the area, modelled rather than measured on site, and it is not a reading of the air inside any room.
Regional data is context about the location. It does not establish conditions inside a room.
Evidence by area
All eight areas, in the order this index reads them. Every line was read and placed by a person.
Air Ecology
The building control installation is published on the KNX Association project database, and the heating, ventilation and air conditioning functions listed as in use include carbon dioxide and humidity measuring, natural ventilation and individual room or zone control. The record was submitted by the system integrator ETHNOKAT S.A., which the project's Archello listing credits as construction. No filter grade, fresh air supply rate or any published reading accompanies the listed measuring function.
In their words: “Heating, Ventilation & Air conditioning (HVAC): Automatic Occupancy Detection , Individual Room Control / Zone Control , Valve Drive Control / Fan Coil Control , CO2 / Humidity Measuring , Natural Ventilation , Floor Heating Control”
The project's Archello listing credits ETHNOKAT S.A. as construction, which is what ties the KNX Association project record to this building rather than to another project by the same integrator. It carries no air specification of its own.
In their words: “ETHNOKAT S.A.”
Water Integrity
The property publishes that its swimming pools, hydromassage and hydrotherapy are operated in accordance with the applicable legal framework and posted pandemic era instructions. The framework is not named, and no sanitation method, disinfectant, filtration specification or water chemistry is published with it.
In their words: “The swimming pools, hydromassage and hydrotherapy operate in accordance with the applicable legal framework and based on the instructions for the operation of the swimming pools during the COVID-19 pandemic that were posted.”
Light Rhythm
The lighting designer publishes the colour temperatures specified for the spa's thermal spaces, 3000K flexible LED luminaires in the tepidarium perimeter cove and a 2500K source in the central pendant. These are specification values for the spa, not measured levels, and the entry was written by the design team for an award submission.
In their words: “Tepidarium- 3000K flexible LED luminaires were used in a perimeter cove to provide apparent brightness, while keeping the actual light levels low. For the centre of the space, 2500K source was used in the central pendant, for a soft relaxing glow.”
Read it: Euphoria Retreat Spa Lighting Design by Anna Sbokou and Katerina Plota Archived copy
The lighting designer publishes that the buried entry corridor and reception are lit by custom tunable white LED COB daylight tubes linked to two daylight sensors. No colour temperature range, control schedule or flicker performance is published for them.
In their words: “To mitigate the harsh entry from daylight into the catacombs, the corridor and reception area were lit with custom tunable white LED COB ‘daylight tubes’, linked with 2 daylight sensors for a smooth transition.”
Read it: Euphoria Retreat Spa Lighting Design by Anna Sbokou and Katerina Plota Archived copy
The KNX project record lists the lighting control functions installed in the building, including dimming, light scenes, timed control, occupancy detection and constant light control. The record names control functions rather than colour temperature by time of day, and no flicker or blackout specification appears on it.
In their words: “Lighting: Switching , Dimming , Light Scenes , Timed Control , Automatic Occupancy Detection , Constant Light Control”
The architect publishes the daylight strategy for the four storey buried spa, an inner cylinder rendered white so that daylight reaches 20 metres down into the building. The 20 metre figure is a building dimension rather than a light measurement.
In their words: “The inner cylinder is a void rendered white that allows light to penetrate 20 meters down.”
Guest room lighting is published only as warm lighting, with no colour temperature, dimming, flicker or blackout specification attached.
In their words: “Meanwhile, modern touches include blond-wood floors, warm lighting and bespoke handmade mattresses which mould to the contours of your body.”
EMF Harmony
The KNX Association project record for the property lists the transmission media of the building control installation as twisted pair, a wired bus, and IP, and the same record lists 301 to 500 KNX devices, individual room control and touch panels. This describes the building control network and not the guest data network:. No field measurement, access point or meter placement, shielding or wireless off switch is published.
In their words: “KNX Transmission media Twisted pair IP”
Materials and Textiles
The project's published product spec sheet names the marble and natural stone used in the spa, Silver Cloud supplied by Stonetech S.A., with two supplier data sheets attached to the listing. No emission class, sealant or adhesive is named alongside it.
In their words: “Marble & Natural Stone Supplier Silver Cloud by Stonetech S.A.”
Read it: Euphoria Spa in the Euphoria Retreat, Deca Architecture Archived copy
The architect publishes the finish applied to the spa's black exposed concrete, sanded back to its aggregate and sealed with wax. No sealant product, brand or emission class is named.
In their words: “This concrete has been sanded down to its aggregate and sealed with wax giving it the quality of a fine terrazzo and inviting the sense of touch.”
The property publishes that guest room mattresses are handmade, with fabrics processed with olive oil and 3,000 springs. No maker, fibre content, certification or flame retardant treatment is published, and the spring count measures construction rather than emission.
In their words: “Handmade mattresses containing fabrics processed with naturally therapeutic olive oil and 3,000 springs that embrace and follow the contours of your body”
Guest room flooring is published as blond wood, a material class with no species, finish or emission certification named.
In their words: “Meanwhile, modern touches include blond-wood floors, warm lighting and bespoke handmade mattresses which mould to the contours of your body.”
The Girls Who Eat Gold Star rating this property holds is defined to require no synthetic fragrance in main spaces or beauty products; the definition is the publisher's, recorded at the tier a third-party assertion earns.
In their words: “Best-in-class properties meeting 4+ of our standards, with no synthetic fragrance in main spaces or beauty products, and verified non-toxic practices across areas like air quality, cleaning products, food sourcing, and bedding”
Food and Kitchen
The restaurant publishes that it buys from local farmers, producers and winemakers and describes the produce as local, seasonal and organic. No farmer, producer or winemaker is named on the page, and no certification or share of supply is published.
In their words: “We’ve nurtured a relationship with local farmers, producers and winemakers, who we know by name, to create a menu that uses the best of local, seasonal and organic produce.”
The property publishes that some produce is grown in its own vegetable and herb garden. No area, yield or share of kitchen supply is published.
In their words: “Some is also grown in our vegetable and herb garden.”
The restaurant publishes how olive oil is used, extra virgin and added at the end of a dish rather than cooked into it. No mill, producer or brand is named, and no other cooking oil, cookware or kitchen water specification is published.
In their words: “Extra-virgin olive oil, like salt, is added to finish a dish so that its nutritional properties are fully retained.”
Biophilic and Healing Design
The architect, DECA architecture, publishes the design method for the four storey spa carved into the base of the mountain, a graded sequence in which the concrete darkens and daylight falls away as the visitor moves from the central well towards the treatment rooms.
In their words: “Moving from the center of the well towards the interior of the spa, the concrete walls become darker, light travels less, preparing the guests to enter the serenity of the treatment rooms.”
The architect publishes how the spa facades meet the forest, pale red exposed concrete cast against clapboard formwork so that the imprint of the boards breaks up the mass. The intent is published as blending the building into the scale of the forest.
In their words: “These facades, with the imprint of the wooden boards and the breakdown of their monolithic mass by using a clapboard formwork technique, blend into the scale and context of the forest.”
The property publishes that an orange grove at the front of the site contains gardens organised around the Five Elements. No planting palette, species list or native planting statement accompanies it.
In their words: “An expansive orange grove at the front of the main property contains gardens dedicated to the energy of ‘The Five Elements’, which are an integral part of both Traditional Chinese Medicine and ancient Hellenic healing practices.”
Outdoor access is published for many rooms rather than for all of them, as a private balcony, terrace or courtyard. No ceiling height or room volume is published, and the published room figures are floor areas.
In their words: “Many rooms also offer a private balcony, terrace or courtyard to uplift and inspire.”
Sound and Sensory Ecology
The property publishes a rule prohibiting mobile phone conversations everywhere on the site, given as a measure for keeping the environment quiet. It is a behavioural rule with no acoustic specification or measured level behind it.
In their words: “However, the use of mobile phones for conversations is prohibited in all places, based on the principle and culture of creating a quiet and peaceful environment for our visitors.”
The property publishes that recorded marine sound is played underwater in the sphere pool. No level, playback system or means of declining it is published.
In their words: “Soothing marine sounds play softly under the water transporting you to into a more sensory world, a place where feel connected to your primal self, where dreams are born and where the body comes out of the head and into ‘feeling’.”
The design team publishes sound, humidity, temperature and smell as parameters handled across the spa sequence. The statement names no acoustic target, separation rating, plant noise figure or fragrance specification.
In their words: “This occurs through a choreographed transition of spaces in which light, sound, temperature, humidity, textures and smells create immersive sensory experiences.”
Read it: Euphoria Retreat Spa Lighting Design by Anna Sbokou and Katerina Plota Archived copy
Certifications
ISO 22000:2018 food safety management, issued by International Organization for Standardization
Awarded: Not stated. Valid until: Not stated.
Girls Who Eat Gold Star rating, issued by Girls Who Eat, Non-Toxic Travel Made Simple
Awarded: Not stated. Valid until: Not stated.
Disclosures
Compare what each stay offers, how it was checked and what still needs confirming. Assessment labels describe the review, not an overall quality rating.
A low score means a property has not published information. It does not mean the property is unsafe, unhealthy or poorly run.
A score describes proof: what a stay publishes and, on a Human Garage certified stay, what our assessor checked in person. It is not a quality rating of the property. Listings are free, and any commercial relationship is disclosed.