The world's most comprehensive open directory of mineral springs and thermal waters — free to access, free to contribute, free forever.
"Water is the driving force of all nature." — Leonardo da Vinci
AquaFonte was created to preserve and share knowledge about the world's mineral waters — their geology, chemistry, history, and healing traditions. From the sulphurous springs of ancient Rome to geothermal fields in Iceland and sacred Māori pools in New Zealand, these waters are part of humanity's shared heritage.
Our data is contributed by geologists, balneologists, spa historians, and travellers worldwide — reviewed by an editorial team before publication. Everything is free, open, and Creative Commons licensed.
Contribute a Spring →The idea for AquaFonte grew out of a simple frustration: the world's mineral springs are documented in dozens of languages, across hundreds of obscure government registries, scientific journals, and regional tourism sites — but there was no single comprehensive, free, multilingual directory that treated them all with equal seriousness.
Balnearios.org does this beautifully for Spain. Similar resources exist in German, Italian, and Japanese. But nothing covers the entire world with the depth that these extraordinary waters deserve.
We set out to build that resource — starting with the most historically and scientifically significant springs, and growing through community contribution. Every spring listing includes the water's chemical analysis, geological origin, therapeutic indications, historical context, and practical visitor information.
Every submission goes through an editorial review process. For chemical data, we cross-reference against official hydrochemical analysis certificates — the government-issued documents that classify mineral waters in each country. For historical claims, we require sources. For therapeutic indications, we only list uses documented in peer-reviewed balneological literature.
We do not accept paid listings or advertising. Our editorial judgement is independent.
AquaFonte is a long-term project. We are working toward full multilingual support in Spanish, French, German, Portuguese, Japanese, and Chinese — reflecting the languages of the world's great spa traditions. We are building partnerships with balneological research institutes in Italy, Germany, Japan, and Hungary. And we are developing a mobile app for offline access in remote spring locations.
Whether you have a spring to submit, a correction to report, a research partnership to propose, or just want to say hello — we read every message.