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Southern Europe
Southern Europe — the region, not the property
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Loutra Aidipsou, Evia, Greece  ·  3 hr 30 from Athens 183 km,  ·  Historic thermal hotel

Thermae Sylla Spa & Wellness Hotel

A nineteenth-century springs hotel on Evia where the springs are the point, and half board comes as standard.

An 1897 building on Evia standing over springs that have been in use for two thousand three hundred years, and the only hotel here where half board is simply the standard rather than the upsell.

The indoor pool is a hundred per cent medicinal thermal water, refreshed daily. The outdoor pool is half thermal water and half seawater. There is a jacuzzi, water rapids, whirlpool jets, a private pier and a seafront café-bar. Condé Nast Traveler has put it among the world's top ten thermal spas.

Breakfast and a buffet-or-menu lunch are included, along with free use of both pools, the gym and aqua-gym, and a complimentary wellness consultation. The hotel's own farm supplies the restaurants.

Southern Europe
Southern Europe — the region, not the property. Photograph Seval Torun
I

The facilities

Built directly on natural thermal springs in use for 2,300 years; an 1897 building, fully renovated

  • Indoor pool of 100% medicinal thermal water, refreshed daily
  • Outdoor pool of 50% thermal water and 50% seawater
  • Jacuzzi, water rapids and whirlpool jets
  • Private pier and seafront café-bar
  • Named by Condé Nast Traveler among the world's top ten thermal spas
II

The rooms

CategorySizeSleeps
Standard Double or TwinCity view 16 m² 2
Deluxe Double with Sea ViewSea view 18 m² 2
Superior DoubleGarden and pool view; balcony in a few rooms only 19 m² 3
Premium Ground FloorGround floor; garden and pool view 19 m² 3
Junior SuitePool view 35 m² 2
Executive SuiteSea view over the Euboean Gulf 35 m² 2

108 rooms and suites in all. 6 categories from the hotel's own pages, smallest first — see their own page ↗. The hotel's own summary says 18–45 m², which does not match the 16 m² standard room and the 65 m² suite in the same list.

III

What the rate covers

What you will not have to think about

Breakfast
time not published
Lunch
time not published
Buffet or menu
Drinks, and the small printHalf board also includes free use of both pools and the gym, and a complimentary wellness consultation.

Yours, at no extra cost

Both thermal pools
Included
Aqua-gym
Included
Fitness centre
Included
Shuttle
Complimentary
The hotel's own farm supplies the restaurants
Guided farm tours not confirmed free

Also in the rate

  • Free but limited parking, about sixteen garage spaces
  • One hundred and eight rooms, 18–45 m²
IV

Before you book

Before you go3 things worth knowing first
  • Minimum stay of 3 nights 1 oct–17 dec 2026; 7 nights 18 dec 2026–1 jan 2027. Shorter stays are usually possible off-season, but ask.
  • Dogs are allowed, but the hotel does not publish the charge. Worth asking.
  • Language. English is spoken throughout, but the hotel's own pages are often fuller in the local language — which is where several of the details above came from.
What is not included3 charges on top of the rate
Climate Crisis Resilience Fee
Per the national 5-star band, up to €15/night at peak
Hydrotherapy, mud therapy and massage
Charged
Single occupancy and dog policy
Not published
The facts, as published10 lines, plus a link to their own site
Classification5-star
CategoryHistoric thermal hotel
Rooms108
SpaNot published
Saunas1
Pools2
Minimum stay3 nights 1 Oct–17 Dec 2026; 7 nights 18 Dec 2026–1 Jan 2027
Spa on arrival dayNot published
Spa on departure dayNot published
ChildrenFamily-friendly; children under 14 must be accompanied at the pools; 13+ charged as adults; playroom on site
Official sitethermaesylla.gr ↗
V

The awards

Recognition

Named by Condé Nast Traveler among the world's top ten thermal spas
VI

Getting there

By air
Athens 183 km, about 3 hr 30
By rail
Not published
Transfers
Complimentary airport shuttle tied to length of stay — a round trip on seven nights or more with a treatment programme, or on fourteen nights either way
Worth knowing
The Arkitsa to Loutra Edipsou ferry takes 40 min and runs roughly every four hours; the hotel's own directions favour the longer road route. Private pier in the warmer months
VII

Why it qualifies

Every one of these was verified against what the hotel itself publishes. Any of them will take you to the others that share it.

VIII

If this appeals

Compiled from the hotel's own published pages where available, otherwise from trade and press sources, correct as at September 2026. Anything marked "not published" is something the hotel does not state — we would rather tell you that than guess. The image above is a generated illustration, not a photograph of the property.

On request
the hotel publishes no rate
Request a price