Fluorescent blue water near Maydena/Tyenna

On the drive up to the Florentine there was an incredibly blue pond of water just out of Maydena, and before the bridge over the Tyenna creek.
Does anyone know if it comes out of a spring or similar?
It looks like the water you see coming out of limestone caves.
The blue dot:

The water:

Does anyone know if it comes out of a spring or similar?
It looks like the water you see coming out of limestone caves.
The blue dot:

The water:
