Karst sinkholes Ezernieki is one of the largest Latvian karst sinkholes systems.

The protected territory of 60 ha. Unique geological object – Karst sinkholes Ezernieki are earth sinkholes (approximately 1-6 m depth, 3-10 m in diameter), formed in areas where groundwater has washed out gypsum, creating voids in underground layers.

In the karst processes the ravines, funnel shape sinkholes and two lakes were formed – Vecezers and Linezers, where irregular water level fluctuations have been observed. Linezers sometimes behave quite strange – water partially or completely flows underground. Over the last decades, it has been observed that in Linezers, through about 9m deep funnel’s water swallower, the water disappears partly or completely.

nature object Sightseeing