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. 2 }) X' }! z/ k6 e4 e) Btvb now,tvbnow,bttvb The undergroud water was great! Due to the high content of lime in the water, that gives its pale blue color。 ' r9 E7 ~7 Q! d9 {. {tvb now,tvbnow,bttvb " k' ]) u w& }* e2 v Q# mTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。Devetashka cave位於保加利亞,歐洲最大的洞穴,長約1500m,入口高35m,寬55m,洞中擁有11個美麗的地下湖泊www1.tvboxnow.com* B* \% g* y3 I+ C) B$ p6 P5 }, C