Thalasso & Spa



Let yourself be carried away by a wave of well-being

Enjoy the benefits of the ocean in our space entirely dedicated to well-being and beauty. Exceptional thalassotherapy treatments or relaxing Spa treatment, our experts will adapt to all your needs and guarantee you softness and soothing. Marine energy is at the heart of our approach to give your body and mind the most delicate care.

You can contact us directly:


Thalasso & Spa

Our equipment

Modelling cabins

Including 3 affusion modelling cabins and a duo modelling cabin with ocean view.


1 overflow seawater pool with counter-current swimming system, underwater jets, gooseneck massaging the cervicals.
1 hot tub
1 sensory shower with light, fragrance and temperature variations.
4 hydro-massaging bathrooms
2 shower cabins with tonic jets

Seaweed wraps

4 cabins specially dedicated to seaweed wraps.


4 cabins dedicated to light treatments.

Sauna & Hammam

In the pure tradition of well-being by heat.

Relaxation area

with terrace facing the ocean and tea room.



Thalassotherapy is part of the essence of the Castel Clara and is in the spirit of a place located in the open sea. We offer you modern and fully equipped facilities, high quality treatments and cures adapted to your desires, from fitness to the Slimming and Softness cure. We take care of everything so that you can let go and enter serenely into a world of relaxation and care, rocked by the sound of the ocean. 

Thalassotherapy brochure tariff booklet


The treatments

These treatments, included in our Thalasso Package, combine the benefits of seawater and marine active ingredients with beneficial properties for your body and mind. Enjoy a real energy concentrate that will restore your body's tonicity and vitality.

Our Excellence treatments are an invitation to absolute well-being. Accompanied by beauticians, experts in relaxing techniques from around the world in the cure "Massages of the world" or relaxation experts, we welcome you to a world of softness and soothing.

The "Slimming & Softness" treatment combines a balanced diet and body care adapted to your needs with a sports coach. Revitalize yourself with the "Sea and Rehabilitation" treatment and its personalized program in warm sea water. The "Light Legs" treatment ensures good circulation through specific massages and treatments.

Our dynamic treatments combine sport and relaxation, according to several formulas adapted to your tastes and passions. With the "Coaching Tonic & Thalasso", we offer you all the fitness options, while having fun and enjoying Belle-Île. 

You have the possibility to combine all the treatments to create your own wellness break. Let your body and mind enjoy all the benefits of the ocean by choosing the tailor-made treatments specially designed by our experts that suit you. 

Temple of relaxation



In the heart of the thalassotherapy institute, our Spa Clara is dedicated to well-being and beauty. In search of pleasure and soothing, your body and mind have found their refuge. In an atmosphere of marine colours, discover a wonderful range of treatments. A promise of serenity and gentleness, the Spa Clara invites you to explore all aspects of well-being to the rhythm of the ocean. 

Spa treatments prices


Trending treatments

A carefully selected partner

Castel Clara has chosen to partner with a brand with unique know-how. For more than 25 years, THALION has remained faithful to its founding values: to offer innovative and high-performance marine products and treatments, while protecting the fragile balance of the marine ecosystem.
Products available in the spa shop


Dive into our indoor heated seawater pool and enjoy all its marine benefits: stress relief, muscle relaxation and a revitalized body! (accessible to thalasso clients)

Our large outdoor seawater pool heated from mid-April to the end of September, our indoor heated pool area and our hammam will allow you to enjoy a superb panorama of the ocean as far as the eye can see. (accessible to hotel guests).

Quick Response Code