Aivojõgi

Aivojõgi is a river in Estonia. It is located in Lääne-Viru County and flows into the Kunda River. The length of Aivojõgi is approximately 15 kilometers. Its drainage basin covers an area of about 45 square kilometers. The river's origin is in the rural area of Kadrina Parish, and it traverses through a landscape characterized by forests and agricultural lands before reaching its confluence.

The Aivojõgi is a relatively small river, typical of the Estonian landscape. Its flow rate can vary significantly depending on precipitation and the season. During spring thaws or periods of heavy rainfall, the river can experience increased water levels. The surrounding ecosystem supports various types of flora and fauna common to the region. The river's path is mostly natural, with some modifications likely present due to agricultural drainage or small-scale land use in its vicinity.

The Aivojõgi does not have major settlements directly on its banks, but it plays a role in the local hydrological system of the Kunda River basin. Its water contributes to the overall flow of the Kunda River, which eventually empties into the Gulf of Finland. The river's significance is primarily ecological and hydrological, contributing to the natural watercourses of northeastern Estonia.