Kotumsar Caves are situated at a distance of about 40 km from Jagdalpur. These caves have got the distinction of being India's first and world's second longest natural caves. As they are underground, there is pitch-darkness inside. It features Stalactites and Stalagmites formations. Entry to the caves is through the narrow stairs and visitors have to pass through tall, narrow chambers for gaining access to the main hall that features superb acoustics. Lots of tribal tales are also associated with it and are also known as Gupanpal or Kutamsar Caves.