This list of longest caves by country includes the longest-known natural cave per country. To be listed, the caves must have been surveyed to cave surveying standards, and the results published in reliable sources.
List ContinentCountrySystemLengthcoordinatesDiscoveryAssociated parks,protected areas AfricaAlgeria ( river) – Parc National de Tlemcen Africa Angola Gruta do Tchivinguiro – none Africa Burundi Grotte de Mugobo – none Africa Cameroon Gaskin Cave – Mt Cameroon National Park Africa Chad Bourdout Oumou – - Africa Comoros Panga Nyamaoui {approx.} – none Africa Congo – - Africa Democratic Republic of the Congo Ngovo Cave – none Africa Eswatini (former Swaziland) Gobholo Cave 2012 none Africa Egypt Sannur Cave – none Africa Equatorial Guinea 1967 none Africa Ethiopia Sof Omar Cave 1972 none Africa Gabon Mbenaltembe Cave 2008 none Africa Kenya Leviathan Cave 1975 Chyulu Hills Africa Libya Umm al Masabih(أم المصابيح) – none Africa Madagascar Marosakabe cave system 2006 Tsingy de Namoroka Nature Reserve Africa Morocco – none Africa Mozambique Khodzu (Codzo) Cave – none Africa Namibia Arnhem Cave – none Africa Nigeria Ogbunike Cave - none Africa Rwanda Ubuvumo Bwibihonga - none Africa South Africa Apocalypse Pothole (approx.) – none Africa Tanzania Nan'goma Cave – none Africa Tunisia Cave Mine Cave Mine (decouverte-record-de-la-plus-longue-et-la-plus-profonde-grotte-de-tunisie in French) – none Africa Uganda Garama Cave – Mgahinga National Park Africa Zimbabwe Batze Cave – noneAsiaAfghanistan Ab Bar Amada Cave noneAsiaArmenia Arjeri qarandzav (Bears cave) -none Asia Cambodia Roung Dei Ho–Thom Ken – noneAsiaChinaShuanghedong Cave Network . 1988Suiyang Shuanghedong National GeoparkAsiaIndiaKrem Liat Prah. noneAsiaIndonesiaLuweng Jaran system noneAsiaIrak Kuna Kamtiar none Asia Iran Katale Khor none Asia Israel Malcham Cave noneAsiaJapanAkkadō (安家洞) none Asia Jordan Al-Fahda CavenoneAsiaKazakhstanUluchar Cave(approx.)none Asia Laos Nam Dôn cave systemnone Asia Lebanon Jeita GrottononeAsia MalaysiaClearwater Cave System (malay:Gua Air Jernih) 1978Gunung Mulu National ParkAsia Mongolia Taliin Cave none Asia Myanmar Som Hein Cave – none Asia Nepal Gupteshwor Mahadev Cave (Patale Chango) (गुप्तेश्वर महादेव गुफा) noneAsia OmanAl Hoota Cave noneAsia Pakistan Pir Ghaib Gharr Gharra (approx.)noneAsia PhilippinesSt.Pauls Underground River Cave Puerto Princesa Subterranean River National ParkAsia Saudi ArabiaCave of Maker al-Shiahi 2025 -AsiaSouth KoreanoneAsiaTajikistanRangkulskaya CavenoneAsiaThailandTham Phra Wang DaengnoneAsiaTurkeyPınargözü Cave or noneAsiaTurkmenistan (Кап-Кутан)noneAsiaUzbekistanDark Star (cave)1984AsiaVietnamHang Khe Ry cave system noneAsiaYemen (Socotra)Giniba Cavenone Caribbean BahamasLucayan Caverns (Ben's Cave)Lucayan National ParkCaribbeanBelizeChiquibul Cave SystemSeveral lengths of the network, between 40,50 or 65km are reported by different secondary sources. However, the reference cited there clearly states that the network is split between at least 4 unconnected caves, and the total length of the network cannot be the addition of 4 individual caves. (approx.)Chiquibul National ParkCaribbeanCubaGran Caverna de PalmaritononeCaribbeanHaitinoneCaribbeanJamaicaGourie CavenoneCaribbeanPuerto-Rico Sistema del Rio EncantadononeCaribbeanDominican Republic Boca del Infierno (cueva Fun-Fun) noneEuropeAlbania Lengarices system (approx)2023noneEuropeAustriaSchönberg-Höhlensystem 1976noneEuropeBelgium Caves of Han-sur-Lesse -noneEuropeBosnia and Herzegovina -noneEuropeBulgariaDuhlata (Духлата) –none EuropeCroatia -none EuropeCzech Republic Amatérská Cave-none EuropeDenmark (Greenland) Cove Cave-none EuropeFinland Lohikäärmeen Luola Caves-none EuropeFrance Réseau Félix Trombe 1908none EuropeGeorgia (თოვლიანი უფსკრული)-none EuropeGermany Riesending Cave-none Europe Greece -none Europe Hungary -none Europe Iceland Laufbalavatn-none EuropeIreland Pollnagollum-none EuropeItaly Complesso del Monte Canin -none EuropeKosovo (approx) –none Europe Latvia Riežupes smilšu alas-none Europe Lithuania -none EuropeNorth Macedonia –none EuropeMoldova –none EuropeMontenegro (Ђаловића пећина) -none EuropeNorway Tjoarvekrajgge –none EuropePoland Jaskinia Wielka Śnieżna –none EuropePortugal –none EuropeRomania Peștera Vântului -none EuropeRussia (Ботовская пещера) -none EuropeSerbia Lazareva Pećina –none EuropeSlovakia –none EuropeSlovenia Migovec System –Triglav National ParkEuropeSpain Sistema del Alto Tejuelo 1965noneEuropeSweden Coral Cave noneEuropeSwitzerlandHölloch 1875noneEuropeUkraineOptymistychna (Оптимістична) -noneEuropeUnited KingdomThree Counties System 1966noneNorth AmericaCanada Castleguard CaveFord, Derek. (2012). Castleguard Cave, Canada. Encyclopedia of Caves. 89–94. 10.1016/B978-0-12-383832-2.00013-X –noneNorth AmericaCosta Rica Sistema kárstico del Cerro Corredor –noneNorth AmericaHonduras Cueva de la Quebrada Susmay –noneNorth AmericaMexico Sistema Ox Bel Ha 1996noneNorth AmericaPanama Ol' Bank Underworld Cave –Isla Bastimentos National Marine ParkNorth AmericaUnited StatesMammoth Cave.1791 Mammoth Cave National ParkOceaniaAustralia Bullita Cave 1990 Gregory National ParkOceaniaNew Zealand Bulmer Caverns 1984noneOceaniaPapua New Guinea Mamo Kananda –none Oceania Samoa La'auoleola noneOceaniaVanuatu Kafae Aven –none South America Argentina none South America Bolivia none South AmericaBrazil Toca da Boa Vista. 1987none South America Chile Roiho system none South America Colombia Cueva del Hipocampo none South America Ecuador Systema Sylvana Galápagos National Park South AmericaPeru Tragadero de Parjugsha Grande none South AmericaUruguay Grutas of Salamanque none South AmericaVenezuela –none
See also List of caves List of longest caves Speleology
References
Notes