An annual phenomenon that transforms the lake into a living jewel.
At certain times of the year, when climate and nature align, Lake Coatepeque reveals one of its best-kept secrets: a shift to an intense shade of turquoise. From Hotel Equinoccio, situated right on its shores, this event becomes a breathtaking spectacle. Since June 14th, the lake has been turning a vibrant turquoise hue — one of the most beautiful natural phenomena of the year.
Watching the lake transform is like seeing nature pulse with new energy. The surface turns bright, almost unreal, ranging between emerald and turquoise, reflecting the sky and contrasting with the green mountains.
Why Does the Lake Change Color?
This phenomenon, known locally as Coatepeque Turquoise, occurs typically once a year and lasts only a few days or weeks. Its origin is the result of natural factors such as:
- The appearance of certain minerals and microorganisms in suspension.
- Changes in water temperature and solar radiation.
- Thermal activity from the volcanic floor of the lake.
This combination creates an optical reaction that transforms the color of the water, without altering its purity or safety. It is a natural, fleeting and completely harmless phenomenon.
From our terraces, docks and panoramic rooms, you can witness this transformation as if the lake were dressing up for a few days. It is one of those moments when nature invites you to pause, observe and be grateful.
Coatepeque Turquoise cannot be predicted with precision, which makes it all the more special. It is a visual gift that reminds us how alive the earth is, and how fortunate we are to witness it from such a privileged place as Equinoccio.
What if this year it is your turn to experience it?