ul gar ian : ▁M е ст ност та ▁„ С и ните ▁ви ров е “, ▁or ▁M est nost ta ▁" S in ite ▁v iro ve ") ▁in ▁the ▁Sm ol yan ▁Province ▁of ▁the ▁Rh od ope ▁Mountains , ▁southern ▁Bulg aria . ▁The ▁cave ▁is ▁close ▁to ▁M og il its a ▁village ▁and ▁ 3 7 ▁and ▁ 4 7   km ▁away ▁from ▁P amp or ovo ▁and ▁Che pel are ▁respectively . ▁About ▁ 3 0 0 0 ▁tour ists ▁visit ▁the ▁cave ▁every ▁year . ▁▁ ▁U h lov its a ▁is ▁about ▁ 4 6 0 ▁m ▁long , ▁ 3 3 0   m ▁of ▁which ▁are ▁well - expl ored ▁and ▁developed . ▁It ▁is ▁ 1 0 4 0 ▁metres ▁above ▁sea ▁level . ▁The ▁average ▁temperature ▁is ▁about ▁ 1 0 – 1 1 ° C . ▁▁ ▁Many ▁cor all ites ▁can ▁be ▁found ▁in ▁the ▁cave , ▁as ▁can ▁an ▁impress ive ▁flow stone ▁formation ▁known ▁as ▁the ▁Ice fall ▁at ▁its ▁end . ▁ ▁The ▁cave ▁was ▁discovered ▁in ▁ 1 9 6 7 ▁by ▁Dim itar ▁and ▁Georg i ▁Ra iche v . ▁The ▁name ▁U h lov its a ▁comes ▁from ▁the ▁word ▁" у лу ли ца ", ▁meaning ▁St rix . ▁ ▁Category : C aves ▁of ▁Bulg aria ▁Category : R hod ope ▁Mountains ▁Category : L im estone ▁c aves ▁Category : T our ist ▁attra ctions ▁in ▁Sm ol