雙河(he)洞(dong)(dong)(dong)(dong)地下(xia)裂縫(feng)長3.8公里,由(you)雙河(he)溶洞(dong)(dong)(dong)(dong)群(qun)200多條支洞(dong)(dong)(dong)(dong)中的(de)三條組(zu)成(cheng),分別是大風(feng)洞(dong)(dong)(dong)(dong)、響水(shui)洞(dong)(dong)(dong)(dong)和小(xiao)風(feng)洞(dong)(dong)(dong)(dong),游(you)覽時(shi)長為(wei)1個半小(xiao)時(shi)。溶洞(dong)(dong)(dong)(dong)分上中下(xia)三層,并通過地下(xia)河(he)與其他溶洞(dong)(dong)(dong)(dong)貫通。洞(dong)(dong)(dong)(dong)內(nei)常年(nian)恒溫15攝氏(shi)度,冬暖夏涼,空氣清新,是負氧離子含量(liang)很(hen)高的(de)一(yi)個天然氧吧。包含120處景點(dian),罕見的(de)卷曲石、石花、地下(xia)暗河(he)、洞(dong)(dong)(dong)(dong)中瀑布、九曲十八彎洞(dong)(dong)(dong)(dong)道(dao)等喀斯(si)特(te)景觀(guan)豐富,集觀(guan)賞性(xing)和趣(qu)味(wei)性(xing)為(wei)一(yi)體。整體上地下(xia)裂縫(feng)是一(yi)個旱洞(dong)(dong)(dong)(dong),總體向南(nan)發育(yu),特(te)點(dian)是洞(dong)(dong)(dong)(dong)道(dao)單一(yi),且向南(nan)越來越寬。洞(dong)(dong)(dong)(dong)內(nei)有(you)發育(yu)眾(zhong)多、造型(xing)優美的(de)次生碳(tan)酸鈣沉積景觀(guan)。
它是(shi)洪(hong)水期混合溶蝕作用在洞(dong)(dong)頂(ding)基巖上形(xing)成為窩穴,形(xing)如(ru)倒掛在洞(dong)(dong)頂(ding)的鍋穴,故名為天(tian)鍋。
溶(rong)洞(dong)(dong)里(li)的(de)(de)石(shi)花(hua)有(you)(you)上千萬種,它們的(de)(de)形狀、大小、顏色都是(shi)(shi)(shi)不一(yi)樣的(de)(de),而且(qie)形態千姿百態,“石(shi)花(hua)”的(de)(de)形成條件(jian)是(shi)(shi)(shi)十(shi)分苛刻的(de)(de),它是(shi)(shi)(shi)溶(rong)洞(dong)(dong)壁或鐘乳石(shi)中(zhong)滲透(tou)(tou)出的(de)(de)毛(mao)細水(shui)和(he)薄膜水(shui)中(zhong)的(de)(de)碳酸鈣緩(huan)慢凝結成的(de)(de)晶(jing)體,有(you)(you)時要(yao)數百年(nian)(nian)才(cai)能增長一(yi)厘米,其化(hua)學成分是(shi)(shi)(shi)碳酸鈣,與普通常(chang)見(jian)的(de)(de)方(fang)解(jie)石(shi)相同(tong),是(shi)(shi)(shi)方(fang)解(jie)石(shi)相同(tong)性質的(de)(de)異晶(jing)體,石(shi)花(hua)的(de)(de)比重和(he)硬(ying)度較(jiao)方(fang)解(jie)石(shi)略(lve)高(gao)。據透(tou)(tou)露,這種石(shi)花(hua)無論(lun)在國(guo)外還是(shi)(shi)(shi)國(guo)內,至今仍只發現于很少數的(de)(de)洞(dong)(dong)穴中(zhong)。它的(de)(de)形成需要(yao)萬年(nian)(nian)以上的(de)(de)時間(jian),并且(qie)面積不會很大。石(shi)花(hua)對研(yan)究(jiu)古代氣(qi)候和(he)水(shui)文的(de)(de)變(bian)遷有(you)(you)極高(gao)的(de)(de)價值。
許多石筍(sun)組成的(de)十(shi)八(ba)(ba)羅(luo)漢(han)(han)(han)拜(bai)觀(guan)音(yin)(yin)的(de)自然景觀(guan),觀(guan)音(yin)(yin)菩(pu)(pu)薩(sa)和羅(luo)漢(han)(han)(han)的(de)造型(xing)栩栩如生。在(zai)佛教里按(an)修行等(deng)級,第(di)一等(deng)是(shi)佛,第(di)二等(deng)是(shi)菩(pu)(pu)薩(sa),第(di)三等(deng)是(shi)羅(luo)漢(han)(han)(han)。十(shi)八(ba)(ba)羅(luo)漢(han)(han)(han)是(shi)釋迦牟尼佛的(de)弟(di)子,比觀(guan)音(yin)(yin)菩(pu)(pu)薩(sa)只(zhi)差一個修行等(deng)級。相傳,有一天(tian),張(zhang)三豐來(lai)到大風洞講(jiang)經說法,直講(jiang)得空中天(tian)花(hua)如雨,地上(shang)金蓮盛開(kai),觀(guan)音(yin)(yin)菩(pu)(pu)薩(sa)聽(ting)了(le)也忍不住現(xian)了(le)真身,十(shi)八(ba)(ba)羅(luo)漢(han)(han)(han)見觀(guan)音(yin)(yin)都現(xian)了(le)真身,也立即趕來(lai)參拜(bai),于是(shi)才(cai)留下了(le)“十(shi)八(ba)(ba)羅(luo)漢(han)(han)(han)拜(bai)觀(guan)音(yin)(yin)”的(de)神奇景觀(guan)。
溶(rong)洞(dong)頂(ding)有(you)特別平(ping)整的(de)(de)形狀,原因是(shi)(shi)它(ta)的(de)(de)形成是(shi)(shi)由(you)于地殼的(de)(de)運動(dong),后來通過水蝕作(zuo)用所(suo)形成,比較特別的(de)(de)是(shi)(shi)這石鐘乳(ru)的(de)(de)線,有(you)一(yi)條(tiao)縫隙里有(you)巖溶(rong)水會從里面(mian)慢慢的(de)(de)滲(shen)透(tou),把它(ta)們分(fen)割開(kai)來,所(suo)以譽為破鏡重圓(yuan)。這景在其它(ta)洞(dong)穴中(zhong)(zhong)非常難(nan)以形成的(de)(de)。2008年中(zhong)(zhong)央電(dian)視臺就是(shi)(shi)看中(zhong)(zhong)此塊天花(hua)板,在洞(dong)里實景拍攝了一(yi)個少兒節目——《探洞(dong)奇兵》。
在洞內會聽到滴答滴答的(de)滴水(shui)的(de)聲音,這是鐘(zhong)乳石在述說屬于它(ta)們之(zhi)間的(de)“悄悄話”,這里的(de)水(shui)非常有靈氣,不(bu)管是干(gan)旱還是漲水(shui),水(shui)位都(dou)始終(zhong)保(bao)持(chi)不(bu)變(bian),所謂石鐘(zhong)乳和石筍它(ta)們之(zhi)間有一(yi)個約定,一(yi)個從(cong)上往下(xia)生長(chang),一(yi)個從(cong)下(xia)往上生長(chang),再過幾(ji)億(yi)年它(ta)們就能在這里相(xiang)遇,因稱為“神(shen)泉玉露”。
景區內有一(yi)處景觀稱為(wei)(wei)無(wu)底(di)洞(dong),又(you)稱之為(wei)(wei)“地心之門”。尚未明(ming)確它(ta)到底(di)有多深(shen)、多長,但溶洞(dong)探險家明(ming)確它(ta)是(shi)通往(wang)重(zhong)慶和(he)貴州省(sheng)桐梓(zi)縣方向,據說探洞(dong)專家在洞(dong)中探了(le)13天,但后來因(yin)為(wei)(wei)補給(gei)的原因(yin)不得(de)不退回(hui),也為(wei)(wei)地下裂縫景區留下了(le)一(yi)個待解之謎。
景(jing)區有(you)一處可以容納一千(qian)多人(ren)(ren)的(de)景(jing)觀處,故也(ye)叫做“千(qian)人(ren)(ren)大(da)廳”,大(da)廳左方向有(you)一個(ge)舞臺(tai),2015年8月29日中國(guo)(guo)首屆溶洞(dong)詩會在此隆(long)重舉行的(de)(活動由世界詩人(ren)(ren)大(da)會中國(guo)(guo)辦事處、貴州清溪(xi)湖旅游開發有(you)限公司聯合(he)舉辦)。當(dang)時名人(ren)(ren)相聚此地,其(qi)中有(you)我國(guo)(guo)第(di)一部新(xin)歌劇《白毛女》現代詩人(ren)(ren)和劇作家賀敬之也(ye)到(dao)此參加。這里(li)的(de)景(jing)點也(ye)很多。
響水洞(dong)(dong)(dong)(dong)是(shi)一(yi)個只能(neng)(neng)聽(ting)其聲不能(neng)(neng)見其身(shen)的(de)(de)(de)(de)(de)一(yi)個洞(dong)(dong)(dong)(dong),它的(de)(de)(de)(de)(de)洞(dong)(dong)(dong)(dong)道與一(yi)條(tiao)較低(di)的(de)(de)(de)(de)(de)地下(xia)河連(lian)接(jie)。通過此洞(dong)(dong)(dong)(dong)50m深的(de)(de)(de)(de)(de)豎井后與位(wei)置(zhi)較高的(de)(de)(de)(de)(de)洞(dong)(dong)(dong)(dong)道連(lian)接(jie),前行100m長的(de)(de)(de)(de)(de)狹窄洞(dong)(dong)(dong)(dong)道,就能(neng)(neng)達到雙(shuang)河溶(rong)洞(dong)(dong)(dong)(dong)的(de)(de)(de)(de)(de)山王洞(dong)(dong)(dong)(dong),這也(ye)是(shi)雙(shuang)河溶(rong)洞(dong)(dong)(dong)(dong)中(zhong)洞(dong)(dong)(dong)(dong)上(shang)有洞(dong)(dong)(dong)(dong)、洞(dong)(dong)(dong)(dong)下(xia)有洞(dong)(dong)(dong)(dong)、洞(dong)(dong)(dong)(dong)中(zhong)有洞(dong)(dong)(dong)(dong)、洞(dong)(dong)(dong)(dong)洞(dong)(dong)(dong)(dong)相連(lian)的(de)(de)(de)(de)(de)明顯(xian)特點。
長度大概在300米左右。一(yi)線(xian)天(tian)的形(xing)成從地(di)質學角度分析(xi),是由于地(di)殼運動,巖石逐(zhu)漸上升,經擠壓形(xing)成一(yi)條(tiao)縫隙(xi)(xi)。這條(tiao)縫隙(xi)(xi)稱為地(di)質節(jie)理。巖層表(biao)面這一(yi)節(jie)理縫隙(xi)(xi)容(rong)易受流水侵蝕(shi),形(xing)成了與節(jie)理走向一(yi)致(zhi)的平直狹窄的深(shen)溝,也就(jiu)形(xing)成了“一(yi)線(xian)天(tian)”的壯美景觀。
暗(an)河(he)又稱“伏流(liu)”,它指地(di)(di)(di)(di)面以下(xia)的(de)(de)(de)(de)河(he)流(liu),是(shi)喀斯特(te)地(di)(di)(di)(di)貌(mao)地(di)(di)(di)(di)下(xia)巖(yan)溶地(di)(di)(di)(di)貌(mao)的(de)(de)(de)(de)一種,是(shi)由地(di)(di)(di)(di)下(xia)水(shui)(shui)匯集或地(di)(di)(di)(di)表水(shui)(shui)沿地(di)(di)(di)(di)下(xia)巖(yan)石(shi)裂隙滲入地(di)(di)(di)(di)下(xia),經過巖(yan)石(shi)溶蝕,坍塌以及水(shui)(shui)的(de)(de)(de)(de)搬運而形(xing)成的(de)(de)(de)(de)地(di)(di)(di)(di)下(xia)河(he)道。暗(an)河(he)一般有出口(kou)無入口(kou),它有自己的(de)(de)(de)(de)補給(gei)、徑流(liu)和排泄系統。地(di)(di)(di)(di)下(xia)暗(an)河(he)是(shi)巖(yan)溶地(di)(di)(di)(di)區的(de)(de)(de)(de)重要(yao)水(shui)(shui)資源。暗(an)河(he)里有生(sheng)(sheng)物,比如魚(yu)類(lei),但是(shi)洞內(nei)的(de)(de)(de)(de)魚(yu)和外(wai)面的(de)(de)(de)(de)魚(yu)是(shi)不一樣(yang)的(de)(de)(de)(de),它常年(nian)生(sheng)(sheng)存于黑暗(an)世界中,在(zai)洞外(wai)環境無法存活(huo)。一般有體內(nei)缺少色素,視(shi)覺器官退(tui)化或消失,新陳(chen)代謝(xie)慢等特(te)點。所以它是(shi)透(tou)明的(de)(de)(de)(de),也只(zhi)能(neng)看到它的(de)(de)(de)(de)內(nei)臟,沒有視(shi)覺,憑的(de)(de)(de)(de)是(shi)嗅覺,在(zai)這條地(di)(di)(di)(di)下(xia)河(he)道里還有其它洞蝦(xia)、洞穴蝌蚪、大鯢(娃娃魚(yu))等珍貴生(sheng)(sheng)物。
太湖(hu)石作為收藏界的(de)四大奇異石之一,具有很(hen)高(gao)的(de)收藏價值,又名窟窿(long)石、假山(shan)石,是(shi)一種石灰巖,因(yin)較早(zao)發現于太湖(hu)地區(qu)而得(de)名。太湖(hu)石是(shi)由(you)于常年水浪(lang)的(de)沖擊(ji)、沖刷、溶解,而產生許多(duo)的(de)窩(wo)孔、穿(chuan)孔、道孔而形成,千(qian)姿百態(tai),通靈剔透(tou),有很(hen)高(gao)的(de)觀賞價值。特點明顯(xian):“皺、漏、瘦、透(tou)”。