The Largest Underground Chambers by Surface Area (Floor) (by Volume page down)  
           
  C A V E     N A M E COUNTRY AREA m2 SOURCE DATE DIMENSIONS (meters)
1 Sarawak (Chamber) - Lubang Nasib Bagus Malaysia 154,500 http://www.cavesofmalaysia.com/newspage.htm Sep-14 767 x 572 x 131
             
2 Miaos Room - Gebihe system China 140,900 Fabien Darne - List Jun-05 890 x 349  238
             
3 Torca del Carlista - La Grand Sala del GEV Spain 87,000 http://clubabismo.es/Simas/Carlista/infoTorcaCarlista.html Jun-05 520 x 245
             
4 Ghar -e- Dosar Iran 81,500 http://iransplo.com/newsDetail.aspx?mode=1&id=432 Jul-05 365 x 265
             
5 Xiniu (Rhino) Chamber - Salle Xiniu China 80,000 Wang Xun Yi, Cave Expeditions Jun-05 400 x 200
             
6 Gua payem Malaysia 70,580 Fabien Darne - List Jun-05  
             
7 Benua Chamber - Benua Sinkhole & Cave Papua New Guinea 70,500 Atlas - Great Caves of the World Jun-05  
             
8 One big room ? Laos 70,000 Fabien Darne - List Jun-05  
             
9 Sistema TZ2-TZ7 - Grand Salle Mexico 60,000 Richard Grebeude Jun-05 200 x 300
             
10 Sistemul Humpleu - Sala Gigantilor Romania 59,607 http://sghbern.ch/romania/ Jun-05 537x111x35
             
11 Majlis al Jinn - Majlis al Jinn Oman 58,000 Atlas - Great Caves of the World Jun-05  
             
11 Api Chamber  (Whiterock Cave) Malaysia 58,000 http://www.cavesofmalaysia.com/newspage.htm Jul-05 300x200x100
             
12 Tit(an) Chamber China 54,800 Roo Walters Oct-14 342 x 319 x 91
             
13 Cloud Ladder Hall - Hong Meigui Cave China 54,900 Hong Meigui Cave Exploration Society Jul-05 474 x 226 x 212
             
14 Belize Chamber - Actun Tun Kul Belize 49,000 Canadian Caver V16N2 Jun-05  
             
15 Salle de l'Eclipse - Gouffe des Partages France 48,300 http://fabien.darne.free.fr/speleo/grandes_salles/ Jun-05 330 x 140 x 40
             
16 Salle Tuke - Reseau Minye - Tevi Oro Papua New Guinea 48,000 http://fabien.darne.free.fr/speleo/grandes_salles/ Jun-05 240x200x130
             
16 Hong Meigui Chamber - Hong Meigui Cave China 48,000 Hong Meigui Cave Exploration Society Jul-05  
             
17 Tlamanictli (TZ1) - Salle La Muneca Fea Mexico 46,377 Richard Grebeude Jun-05 250 x 500
             
18 Weibu Chamber - Chijin Dong China 46,200 Wang Xun Yi, Cave Expeditions Jun-05 400 x 108
             
19 Entrance Chamber - Xiong Jia He Da Dong China 43,200 Wang Xun Yi, Cave Expeditions Jun-05  
             
19 Panayoran Chamber - Langun Cave Philippines 43,200 Speleologia No.17 Jun-05 270 x 140 x 40
             
20 Gouffre de la Martin - Salle de la Verna France 43,000 http://www.atm3d.com/v5/pdf/verna.pdf Jun-05 255 x 245 x 180
             
21 Gruta de Villa Garcia Mexico 40,820 Atlas - Great Caves of the World Jun-05  
             
22 Salon de Gigantes - Gruta del Palmito (Bustamante) Mexico 39,730 Fabien Darne - List Jun-05  
             
23 Tham Toutche - Swallow Cave Thailand 38,690 Fabien Darne - List Jun-05  
             
24 Deer Cave Malaysia 38,600 Roo Walters Oct-14 870 x 177 x 270
             
24 Gua Kepayang (Sungai Baai) Indonesia 37,800 http://fabien.darne.free.fr/speleo/grandes_salles/ ##### 270x140
             
25 Kocain Big Room - Kocain Cave Turkey 37,200 Atlas - Great Caves of the World Jun-05  
             
26 Entrance Chamber - Ganduan Dong China 37,000 Wang Xun Yi, Cave Expeditions Jun-05  
             
27 Carlsbad Cavern Big Room USA 33,210 Atlas - Great Caves of the World Jun-05  
             
28 Grotta Gigante Italy 33,120 Fabien Darne - List Jun-05 240 x 138 x 132
             
29 Sotano de las Golondrinas (open to surface) Mexico 33,110 Atlas - Great Caves of the World Jun-05  
             
30 Chiquibul (Chamber)  - Actun Kabal Belize 32,090 Atlas - Great Caves of the World Jun-05  
             
30 Martel Dom ou Martel's Chamber - Skocjanske jame Slovenia 32,090 Atlas - Great Caves of the World Jun-05 308 x 89 - 123 x 106
             
31 Sala Gabor Halasi (Sistemul Humpleu) Romania 31,930 http://fabien.darne.free.fr/speleo/grandes_salles/ Jun-05 310x103x35
             
32 Tham Phuphaphet  - Swallow Cave                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Thailand 30,500 Axbridge Caving Group Journal Jun-05 1.03km loop
             
33 Xiji (Century) Chamber - West Cave, Leye China 27,500 Wang Xun Yi, Cave Expeditions Jun-05  
             
       The Largest Underground Chambers by Volume
           
  C A V E     N A M E COUNTRY AREA Mm3 SOURCE DATE L x W x H
1 Luse Papua New Guinea 50.000 Atlas - Great Caves of the World Jun-05
           
2 Ora     (Doline) Papua New Guinea 29.000 Atlas - Great Caves of the World Jun-05
           
3 Minye     (Doline) Papua New Guinea 26.000 Atlas - Great Caves of the World Jun-05
           
4 De Xiao Cho Koo China 25.000 Atlas - Great Caves of the World Jun-05
           
5 sima mayor de Sarisarinama     (Doline?) Venezuela 18.000 Atlas - Great Caves of the World Jun-05
           
6 sotano del Barro (open to serface) Mexico 15.000 Atlas - Great Caves of the World Jun-05
           
7 Kavakuna Papua New Guinea 15.000 Atlas - Great Caves of the World Jun-05
           
8 Korikobi Papua New Guinea 14.600 Atlas - Great Caves of the World Jun-05
           
9 Miaos Room - Gebihe system China 10.780 Roo Walters Oct-14 890 x 349 x 238
           
10 Sarawak Malaysia 9.640 Roo Walters Oct-14 767 x 572 x 131
           
11 Salle de la Verna France 10.535 Fabien Darne - List Jun-05 255 x 245 x 180
           
12 Deer Cave Malaysia 6.310 Roo Walters Oct-14 870 x 177 x 270
           
13 HMG China 5.250 Roo Walters Oct-14 474 x 226 x 212
           
14 sotano de las Golondrinas (open to surface) Mexico 5.000 Atlas - Great Caves of the World Jun-05
           
15 Korikobi Papua New Guinea 5.000 Atlas - Great Caves of the World Jun-05
           
16 Benua Papua New Guinea 5.000 Atlas - Great Caves of the World Jun-05
           
17 Torca del Carlista - La Grand Sala del GEV Spain 4.000 Atlas - Great Caves of the World Jun-05 520 x 245
           
18 Titan China 2.530 Roo Walters Oct-14 342 x 319 x 91
           
       The Largest Passage (Trunk/Borehole)
           
  C A V E     N A M E COUNTRY Size (Meters) SOURCE DATE
1 Han Son Doong Vietnam 5000x145x200 http://is.gd/uiin Apr-09 145,000 Mm3
           
2 Deer Cave Malaysia 4100x90x100 http://www.mulucaves.org Jul-05 36,9000 Mm3