Immerse yourself in warm sea water and indulge in unique relaxation

Allow it to embrace your body. Heal it with its warmth. And beneficial energy. The effect will be almost magical. Exactly what you need. Exit reborn. Full of new power. Vital energy.

Swimming-pools with thermal Prehistoric Sea

Experience the primal energy of the thermal Prehistoric Sea. You will find it in the center of Portorož. Surrounded by the warm colours of the Istrian countryside and wall paintings depicting Prehistoric times. Captured in the 42,000 year-old Prehistoric sea. Experience this relaxing feeling of warmth. Let it fill you with fresh energy.

Immerse yourself in the elixir of life.

The Prehistoric sea is unique thermomineral water. Its chemical composition is only partially similar to today’s sea. It is characterized by a high content of minerals and exceptional beneficial effects. On the skin, the respiratory system and motor system. On your general well-being.

365 days of enjoying the Prehistoric sea


2,000 m2 large pool complex 


700 m2 of pools 


Swimming pool


Large resting pool


Children’s pool


Two whirlpools


Sun terrace with view

Swimming-pools with heated sea water - Sea Spa

Breathe, get rid of stress, strengthen yourself. Treat yourself to “vitamin sea”. In a new relaxing environment with warm shades that gently stroke the soul. Smell of the sea. Dive into a heated seawater pool. Indulge in the sunshine on the terrace. Look at the relaxing view of the green pine trees. Listen to the sound of meditative music. This is Sea Spa.

Positive effects of negative ions in the sea air

  • Balanced levels of the happiness hormone in the body
  • Encouraging proper breathing and heart function
  • Strengthening the immune system
  • Improving concentration
  • Decreased insomnia, depression, headache and fatigue

Beneficial effects of sea salt

  • Improved blood circulation and metabolism
  • Relieving pain in the spine
  • Muscle strengthening
  • Encouraging the functions of the organs (liver, kidneys, skin), that eliminate harmful substances from the body
  • Beneficial effect on skin and skin disorders (dermatitis, psoriasis, eczema)

365 days of Sea Spa pleasures


1,500m2 of new surfaces


650m2 heated water surfaces


A large indoor pool


Large massage pool


Swimming pool with meditative music


Children’s pool


Outdoor pool


Turkish and Finnish sauna


Sea Spa Saunas

Opening times

Swimming-pools with heated sea water - Sea Spa

1. 6. - 30. 6. 2019.

Every day: 8.00 - 21.00 (except Tuesday)

Tuesday: 14.00 - 21.00

1. 7. - 31. 8. 2019.

Every day: 8.00 - 20.00 (except Tuesday)

Tuesday: 14.00 - 20.00

Swimming-pools with thermal Prehistoric Sea

Every day: 07:00 – 21:00 (except Thursday)

Thursday: 14:00 - 21:00

*Closed: 1 July - 11 July 2019

Location and contact

Obala 33, 6320 Portorož, Slovenija
+385 5 692 80 09

Sea Spa Pools
+385 5 692 90 21

Swimming-pools with thermal Prehistoric Sea
+385 5 692 80 60

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This is the world of healthy pleasures.

Enter it and finally start to feel great. We will help you.

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