Pluragrotta
The damming of lake Kallvatnet in the mid-1960s greatly reduced water flow in the partially subterranean Plura river, making diving possible in the cave.[1] In 1987 a group of ten Norwegian divers started to explore the Pluragrotta's underwater cave system.[2] Their work became known when NRK in 1997 aired a program about it in the series Ut i naturen [no] (Out into the Nature) when seven members of Norsk teknisk dykkekrets presented the Pluragrotta on TV.Finnish explorers were the first to discover a connection between the two known entrances: Pluragrotta, and the nearby dry cave Steinugleflåget, in September 2013.[14] 69 persons participated and the couple to achieve the record was Jani Santala (Finland) and Ina Trælnes (Norway).In August 1988, a diver exploring the cave tore the right leg of his diving suit on a sharp rock.Norwegian authorities called on an international team, which included British divers Richard Stanton, John Volanthen and Jason Mallinson, to recover the bodies.
JordbrugrottaRana MunicipalityNorwayLimestonemarbleNordlandNorthern Europecave divingScandinaviaPlura riverKallvatnetRiver PlurasubterraneanFire brigadesurveyedUniversity of BergenScandinavian MountainsperiglacialsubglacialSouthern EuropeaninvertebrateLeptus spp.Liogluta alpestrisPorrhomma convexumTV2 Newshypothermiadecompression sicknessRichard StantonJohn VolanthenDiving Into The UnknownTjoarvekrajggeHelsingin SanomatDagbladetRana BladRecreational dive sitesAkumalAliwal Shoal Marine Protected AreaAliwal ShoalAmed (Bali)Apo IslandApo ReefArrecifes de Cozumel National ParkBay of PigsBelize Barrier ReefBiscayne National ParkBohol SeaBowie SeamountBunakenBunaken National ParkCahuita National ParkCalve IslandCapurganáĊirkewwaCliff Villa PeninsulaCozumelDhilba Guuranda-Innes National ParkEdmonds Underwater ParkEl Ikhwa IslandsFalse BayGħar QawqlaGili IslandsGreat Barrier ReefGreat Southern ReefGuadalupe Island Biosphere ReserveHol Chan Marine ReserveiSimangaliso Marine Protected AreaSodwana BayJohn Pennekamp Coral Reef State ParkKadmat IslandKo TaoLighthouse ReefMantanani IslandsMalapascuaMartin's HavenMarsa AlamMolasses ReefMolokiniNeptune IslandsOsprey ReefPalancar ReefPanglao, BoholPescador IslandPetit Saint VincentPoor Knights IslandsPorteau Cove Provincial ParkPuerto GaleraPunta CanaRas Muhammad National ParkRondo IslandRottnest IslandSan Andrés (island)San Pedro Nolasco IslandShaʽb Abu NuħasShadwan IslandSimilan IslandsSipadanSocorro IslandSound of MullSt. Crispin's ReefTable Mountain National Park Marine Protected AreaTagangaTsitsikamma Marine Protected AreaTubbataha ReefWakatobi RegencyWeh IslandAzure WindowCod HoleDaedalus ReefDarwin's ArchDevil's Throat at Punta SurElphinstone ReefEyemouthFanadirFrederiksted PierFrench ReefFowey Rocks LightGamul KebirHilsea Point RockInland Sea, GozoKennack SandsThe ManaclesMagic PointOctopus HolePope's EyePortsea HoleSecond Valley