Edipsos Health Spas
On Evia Island - 80+ hot springs older than 20,000 years old used in ancient times (mentioned by Atistotle) to cure to  illness and feel better. Modern treatment center. Sightseeing.

Mare Nostrum Thalasso
In Vravrona - Mud treatments, thalassotherapy, water therapies, massage, reflexology, shiatsu, cosmetic and esthetic treatments. Sauna, gym. Slimming and anti-arthritis programs. 

Aldemar Royal Mare Thalasso
On the island of Crete - New 3700 sq.m.health and sea water center offers indoor sea water pools, sea water showers and baths, affusion shower, algae and sea mud applications, physiotherapy, and more.

Thermals-Loutraki 
In Loutraki - Full hydrotherpy facilities, water therapies.