Because of the heavy seasonal rainfall and snowfall in the winters, which at times reaches a few meters, it has numerous water resources.

The excess water of the lake which forms a small river which irrigates farmlands in the villages of Kushk and Ain.

Ovan Lake is suitable for fishing, swimming and riding boats in summer while in fall it hosts migratory birds such as swan, goose and duck.

There in the lake also live fishes like salmon, carp, and pike in addition to plants like everglade and reed that grow in its vicinity.

Thanks to these beauties and natural potentials, Ovan Lake is recorded as one of the most significant tourist poles in Qazvin province and is frequented by many visitors from around the country and all over the world during the whole year especially on holidays and in summer.