The Devetashka cave is located 18 kilometers northeast of Lovech and 2 kilometers of the village of Devetaki. The cave is also known as Maarata or Oknata for its seven different-sized holes in the ceiling, through which sunlight penetrates and illuminates the central hall and part of its two fields. 1 c; [/ d5 E$ I! l& fos.tvboxnow.com The undergroud water was great! Due to the high content of lime in the water, that gives its pale blue color。os.tvboxnow.com; g$ b3 j# |, }9 F" }- `