Only 20 km away from Krushuna village on the way to Lovech is the Devetaki Cave.
One of the largest caves in Bulgaria, used for storage by the military in the past, now the cave gives shelter to bats / because of their breeding period, access from June 1 to July 31 is forbidden. / In the 1950s it was used for oil storage and the big tanks still stand near the entrance to the cave. According to some reports, due to the size of the cave, it was used for storing food from the state reserve and for deploying rocket launchers. The cave can be reached using the bridge rebuilt in 2011 – direction Lovech-Letnitsa -> after the road fork to the village of Devetaki, continue to the direction of Letnitsa, in the right is visible a high chimney, 200m after it, to the right, no plate, narrow asphalt road, passing 300m to the new bridge and after it is The Devetaki cave.