The thousands of years old turf bottom thermal lake is fed by the cold and warm sources rich in minerals found in the 38 m deep source cave.
The lake produced 410 l/sec., which means that water is changed every three days. The erupting water’s temperature at the source is 38,5 C and the lake’s temperature varies between 24 C and 38 C according to the season, which enables winter bathing.
The 3,8 ha lake Echo of New Zealand is second largest after Hévíz in terms of size, however it is unsuitable for bathing due to its water temperature (50-55 C).