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Tefsion Kallos Spa

Santorini, South Aegean

Hotel spa at Aressana Spa Hotel & Suites in Fira, Santorini, open to hotel guests with a sauna, steam room, hot tub and couples treatment rooms.

Spa treatment room with stone wall feature, glowing blue pool, and guest relaxing on platform
  • Guest in spa treatment area with sculptural stone wall backdrop and illuminated blue water feature
  • Tefsion Kallos Spa photo 3
Photo: Tefsion Kallos Spa via Google

At a glance

Price
$$$$
Couples treatments
Yes
Visit website2286 023900
Access
Hotel guests only
Amenities
Fitness centerHot tubPoolPrivate suitesRelaxation loungeSaunaSteam room
Good for
Couples
Price
Luxury

Tefsion Kallos Spa sits inside the Aressana Spa Hotel & Suites on Mitropoleos Street in Thira (Fira), Santorini, and is open to hotel guests. It runs a relaxation lounge with an interior hot tub, infrared sauna, steam room and thermal relaxing beds, plus access to the hotel pool outside.

Treatments are handled in three private cabins: one set up for single use and one designed for couples' packages. The spa menu covers wraps, facials and detox-style programs, with therapists offering tailored sessions rather than a fixed set list. A current spa menu (2026) is available as a downloadable PDF from the hotel's site.

The hotel also runs a small fitness centre on-site, with two treadmills, two elliptical trainers, a multi-way Technogym trainer and light weights, available to guests alongside the spa facilities.

Opening hours run 09:00 to 21:00 most days, with Wednesday extended to 08:00–22:30. This is a luxury-tier hotel spa (price tier 4), and access is limited to guests staying at Aressana Spa Hotel & Suites rather than walk-in day visitors. Bookings and treatment pricing go through the hotel's own reservation system or by phone.

Good to know

Can non-hotel guests book a treatment here?
No — access is listed as hotel guests only, so this spa does not appear to offer day passes to outside visitors.
What are the opening hours?
The spa is open 09:00–21:00 Thursday through Monday and Tuesday, and 08:00–22:30 on Wednesday.
Is there a couples treatment option?
Yes, one of the three private treatment cabins is set up specifically for couples' spa packages.
What facilities does the spa include besides treatment rooms?
There's a relaxation lounge with an interior hot tub, infrared sauna, steam room, thermal relaxing beds, a pool and an on-site fitness centre.
How do I book a treatment or check prices?
Pricing isn't published here; book through the Aressana Hotel's reservation system or by calling the hotel directly, and confirm current treatment costs with the spa.

Details checked November 2, 2026. Prices and hours change; confirm before you go.

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