Matafiya masu saurin tafiya suna so su tafi iyakar duniya kawai don samun damar da za su fara kallon wasu daga cikin manyan shimfidar wuraren da suka shimfiɗa a fadin duniyarmu. Daga tsaunukan dutse masu dusar ƙanƙara a kan iyakokin teku na teku, akwai wadataccen wurare mai ban sha'awa waɗanda suke gudanar da su don kama tunaninmu. Amma wasu daga cikin wurare masu kyau ba a samo su ba a cikin duniyar duniyar, saboda akwai yalwa da za'a gani a ƙarƙashinsa .
A gaskiya ma, wasu daga cikin abubuwan ban mamaki wadanda yanayi ya bayar zasu iya samu a cikin tuddai masu yawa. Tare da wannan a zuciyarsa, a nan akwai manyan koguna guda biyar waɗanda kowane matafiyi ya kamata ya yi a kan jerin sunayen da zai ziyarta.
Carlsbad Caverns National Park (Amurka)
Kudancin New Mexico yana cikin gida mafi kyau mafi kyau a cikin duniya a hanyar Carlsbad Caverns National Park. A cikin ƙarni, sulfuric acid sun narkar da gurbin dutse a can, suna samar da daya daga cikin manyan wuraren shimfidar ƙasa karkashin kasa da aka samu a ko'ina cikin duniya. Tare da fiye da 119 ɗakunan sanannun kuma fiye da mil dari milyan hanyoyi, Carlsbad Caverns ne na gaskiya mamaki don gani. Babban jerin shi ne "Big Room," babban ɗakin da yake da tsawon mita 4000 (mita 1220), tsawon mita 625, kuma mita 255 ne. Masu ziyara za su iya zaɓar su sauka a cikin kogo kansu ko kuma su dauki ɗakin ɗagawa daga cibiyar baƙo wanda ya sauke mita 754 (mita 230).
Dan Doong Cave (Vietnam)
Yayi tsawon kilomita 8,8 na tsawon lokaci, Ɗan Doong Cave a Vietnam yana da bambancin kasancewa daga cikin manyan koguna guda daya a duniya. Da farko an gano shi a shekarar 1991, kuma daga bisani an tsara shi ta hanyar balaguro a shekarar 2009, ana iya buɗe kogon don yawon bude ido a karo na farko a shekarar 2013.
Kogon yana da karfi sosai cewa hasumaiyar rufi fiye da mita 400 (122) ne, kuma yawancin ɗakin yana ci gaba da duhu a lokacin da baƙi suka zo makamai tare da hasken wuta. Baƙo mai suna Son Doong ba sauki ba ne; Yana da zurfi a cikin tsakiyar itatuwan tsirrai na Vietnam, kuma wanda ke aiki ɗaya ne a yanzu lasisi don jagorancin shiga cikin cikin kogon. Oxalis Adventures yayi nuni 7-day / 6-dare wanda ya kamata ya yi kira har ma da mafi yawan matafiya.
Mulu Caves (Borneo)
Bornoo's Gunung Mulu National Park yana gida ne da jerin manyan kogo na karkashin kasa da suke cikin mafi girma a cikin dukan duniya, a kalla a cikin yanayin yawan yanki. Sun haɗa da babban Sarawak Chamber, wanda yake da mita 2300, tsawonsa kamu dubu goma sha biyu (mita 396), kuma mita 230 ne. Yana ciyarwa a kusa da Deer Cave, wanda shine daya daga cikin manyan wuraren da aka sani da su wanzu, yana da murabba'in mita 551 (mita 169), mita 410 da tsawo, kuma kilomita 1 a tsawon. Kogon yana samo sunansa daga gaskiyar cewa yawancin ƙauyen yankuna suna ɓoye ciki don suɗa gishiri daga duwatsu daga lokaci zuwa lokaci, suna bawa baƙi damar samo su a wani lokaci.
Masu gudanar da shakatawa suna bawa damar balaguro damar gano wadannan dutsen da wuraren tafiye-tafiye na kwana 3 da 2 a cikin baƙi, da kuma kyakkyawan kyakkyawan duniya mai zurfi da ke cikin ƙasa mai zurfi.