There are many naturally occurring hot springs around the world, many affiliated with volcanic activity. In Costa Rica, there are hot springs of different temperatures, flow volumes and mineral content that can be found in the regions around the Arenal, Irazu, Miravalles and Rincon de la Vieja Volcanos, and others in the Orosi Valley or near Ciudad Quesada in San Carlos. But the perfect combination of volume, temperature and mineral content (low sulfur content to prevent strong odors) that is present in Tabacon Grand Spa Thermal Resort is unique in Costa Rica and worldwide. Hot springs are considered a natural expression of Earth’s inherent energy. Geologically, Tabacon Resort’s thermal natural springs are 97% rain-based and 3% magma-based. Rainwater enters the earth through fissures on the surface and is then heated by magma found in the earth’s core. Once heated, the waters rise to surface, taking with them minerals found in the earth’s rocky stratus.