Editing Tourism in Bulgaria (section)

===Caves and waterfalls===

As of 2002, there are around 4,500 discovered underground formations in Bulgaria.<ref>{{cite book |title= География на България. Физическа и социално-икономическа география |year= 2002|publisher=„ФорКом“ |isbn= 954-464-123-8|pages=64}}</ref> The earliest written records about the caves in Bulgaria are found in the manuscripts of the 17th century [[Bulgarian National Revival]] figure and historian [[Petar Bogdan]]. The first Bulgarian speleological society was established in 1929. The caves in the country are inhabited by more than 700 invertebrate species and 32 of the 37 species of [[bat]]s found in [[Europe]].
{{Gallery
| title = 
| width = 190
| height = 130
| File:DevilsThroathCave.jpg|[[Devil's Throat Cave]]
| File:Bacho Kiro Cave.jpg|[[Bacho Kiro cave]]
| File:Devetàshka peshterà (Devetàshka cave).JPG|[[Devetashka cave]]
| File:LedenikaCave.jpg|[[Ledenika]]
| File:Magura-cave-pictographs.jpg|[[Magura Cave]]
| File:Prohodna cave Eyes TottoBG.jpg|[[Prohodna]]
| File:WhiteCastleStalagmite.jpg|[[Saeva dupka]]
| File:Snejanka-Cave.jpg|[[Snezhanka (cave)]]
| File:Uhlovitza-cave-niche.jpg|[[Uhlovitsa]]
| File:Babsko praskalo.JPG|[[Babsko Praskalo]]
| File:Borov kamyk 201.jpg|[[Borov Kamak]]
| File:Emen waterfall 2.jpg|[[Emen, Bulgaria|Emen]]
| File:Raysko-praskalo-cc-karalamov.jpg|[[Raysko Praskalo]]
| File:Vodopad.varovitec.JPG|[[Etropole Waterfall]]
| File:Waterfall Karlovsko pruskalo.jpg|[[Karlovsko Praskalo]]
| File:KrushunaIwatterfall2.jpg|[[Krushuna Falls]]
| File:Popinolashki vodopad.jpg|[[Popinolashki waterfall]]
| File:Skakavitsa Waterfall TB1.jpg|[[Skakavitsa Waterfall]]
}}