The lake was located in eastern Istria, on the western and south-western slopes of Mount Učka (to the west of uplift Sisol, elevation 833 m). South of the lake (now filled) is the town Kršan, to the east the ruins of Kožljak Castle, while to the west and north was the Pauline monastery of St. Mary, and the villages of Čepić, Kostrčani, Brdo Jesenovik, Nova Vas, and Šušnjevica, mostly inhabited by Istro-Romanians.