In the peaceful, sunny Algarve region in southern Portugal, the Vilalara Thalassa Resort is where to head for a genuine thalassotherapy seawater experience. The first thalassotherapy center in the country, it was originally developed in 1966 by Englishman George Ansliy, inspired by his travels to spas in Sardinia. Now part of the exclusive Blue&Green hotel group, the property features direct access to Praia das Gaivotas. Accommodation choices include 104 junior suites, seven suites and 12 apartments, each with complimentary WiFi and a private terrace overlooking the ocean, gardens or pool.

The enormous seawater spa provides professional medical staff, and a host of thalassotherapy treatments that include an underwater shower, seaweed therapy, marine mud baths, marine cellulite drainage and bubble baths. Special marine slimming/anti-cellulite treatments are available, along with themed stays that include Anti-Stress/Wellness, Leg Toning, Anti-Tobacco Treatment and Special Back Treatments. Beyond the spa, choose from on-site activities such as Tai-Chi Chuan, Pilates, yoga and personal training sessions. Enjoy golf at one of a dozen coastal courses, tennis, sightseeing in traditional villages, or exploring the cave-riddled coastline with a private guide.