Ba Bể National Park is located in Bắc Kạn Province,[2] about 240 kilometers north of Hanoi, about 70 km northwest of the provincial capital Bắc Kạn, and about 14 km west of the town of Cho Ra.

The Ta Han, Bo Lu, and Leng Rivers feed into the lake from the south and the west.

The vegetation in Ba Bể National Park mainly consists of limestone and evergreen forest.

The dominating tree species of the limestone forest are Burretiodendron hsienmu (Tiliaceae) and Streblus tonkinensis (Moraceae).

Climbing bamboo (Ampelocalamus) is a regional endemic plant common on the hill slopes near the lake shore.

65 mammal species have been recorded in the park, among them: Chinese pangolin (Manis pentadactyla), slow loris (Nycticebus coucang), rhesus macaque, stump-tailed macaque, François' langur, Asian black bear, European otter, Owston's palm civet, Asian golden cat, mainland serow, red giant flying squirrel, particolored flying squirrel (Hylopetes alboniger), hairy-footed flying squirrel as well as 27 bat species.