Thalasso treatments

A cure thalassotherapy allows to benefit at the most from benefactions of the sea water, but also from seaweeds and from some marine mud. The sea water , rich in trace elements and minerals , helps revitalize the body. Algae have trace elements and vitamins. They allow to cleanse the skin and to rebalance it. Sea mud, rich in trace elements, is known for its analgesic and detoxifying properties. Applied directly to body parts, sea mud helps restore suppleness and vitality to the skin. In the Mont-Saint-Michel bay, on the outskirts of Granville, the newly opened Prévithal institute has an exceptional location overlooking a majestic site. Entirely dedicated to treatments, this area is made up of two areas: The ‘dry zone’: hydrojet, massage cabin, physiotherapy treatments with Ecole du dos© (spinal rehabilitation) area. The ‘wet’ zone: rehabilitation pool, marine mud bath, seaweed wraps and applications of marine muds, hydro massage bath, jet shower, affusion shower, marine hydromassage and foot spa. A cabin offering all of these treatments s available for those with reduced mobility.

Seaweed bath - 20 mn

Seaweed bath (20 min). Marine space is included.

Application of marine mud - 20 mn

Application of marine mud (20 mn). Marine space is included.

Hydromassage bath - 15 mn

Hydromassage bath (15 mn). Marine space is included.

Jet shower - 10 mn

Jet shower (10 mn). Marine space is included.

Shower with affusion - 15 mn

Shower with affusion (15 mn). Marine space is included.

Hydrojet - 15 mn

Hydrojet (15 mn). Marine space is included.

Algae wrap - 20 mn

Algae wrap (20 mn). Marine space is included.

Marine mud wrap - 20 mn

Marine mud wrap (20 mn). Marine space is included.

Hydromassage marine - 15 mn

Hydromassage marine (15 mn). Marine space is included.

Affusion modeling - 20 mn

Affusion modeling (20 mn). Marine space is included.

Gastronomy & Wellness Duo Offer

Gastronomy & Wellness Duo Offer

- 1 Les Embruns menu for 2 people

- 1 water jet sound and light for 2 people 

+ Access to the Marine Area is included. 

Zen on the sand

- 1 session of Zen attitude on the sand (5 people)


- 1 relaxation in swimming pool 30 mn to 1h


- 1 "Arctic Wonder" Ritual

Summer detox

1 treatment Spirulina boots. Access to the marine area is included. 


Enriched with Spirulina, your face is smoothed of all traces of age. Completed by marine magnesium, your complexion will be radiant, detoxified and energized.