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 162,700 Atlas - Great Caves of the World 1989 600 x 415 x 70
             
2 Miaos Room - Gebihe system China 118,000 Fabien Darne - List 2001 700 x 215 x 70-100
             
3 Torca del Carlista - La Grand Sala del GEV Spain 87,000 http://clubabismo.es/Simas/Carlista/infoTorcaCarlista.html 1989 520 x 245
             
4 Ghar -e- Dosar Iran 81,500 http://iransplo.com/newsDetail.aspx?mode=1&id=432 2013 365 x 265
             
5 Xiniu (Rhino) Chamber - Salle Xiniu China 80,000 Wang Xun Yi, Cave Expeditions 1999 400 x 200
             
6 Gua payem Malaysia 70,580 Fabien Darne - List 2008  
             
7 Benua Chamber - Benua Sinkhole & Cave Papua New Guinea 70,500 Atlas - Great Caves of the World 1989  
             
8 One big room ? Laos 70,000 Fabien Darne - List 2001  
             
9 Sistema TZ2-TZ7 - Grand Salle Mexico 60,000 Richard Grebeude 2006 200 x 300
             
10 Sistemul Humpleu - Sala Gigantilor Romania 59,607 http://sghbern.ch/romania/ 1989 537x111x35
             
11 Majlis al Jinn - Majlis al Jinn Oman 58,000 Atlas - Great Caves of the World 1989  
             
12 Titan Chamber China 54,000 Caves & Caving V42 2012  
             
13 Cloud Ladder Hall - Hong Meigui Cave China 51,000 Hong Meigui Cave Expploration Society 2012  
             
14 Belize Chamber - Actun Tun Kul Belize 49,000 Canadian Caver V16N2 1984  
             
15 Salle de l'Eclipse - Gouffe des Partages France 48,300 http://fabien.darne.free.fr/speleo/grandes_salles/ 2001 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/ 2001 240x200x130
             
16 Hong Meigui Chamber - Hong Meigui Cave China 48,000 Hong Meigui Cave Expploration Society 2012  
             
17 Tlamanictli (TZ1) - Salle La Muneca Fea Mexico 46,377 Richard Grebeude 2006 250 x 500
             
18 Weibu Chamber - Chijin Dong China 46,200 Wang Xun Yi, Cave Expeditions 1999 400 x 108
             
19 Entrance Chamber - Xiong Jia He Da Dong China 43,200 Wang Xun Yi, Cave Expeditions 1999  
             
19 Panayoran Chamber - Langun Cave Philippines 43,200 Speleologia No.17 1987 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 1989 255 x 245 x 180
             
21 Gruta de Villa Garcia Mexico 40,820 Atlas - Great Caves of the World 1989  
             
22 Salon de Gigantes - Gruta del Palmito (Bustamante) Mexico 39,730 Fabien Darne - List 2001  
             
23 Api Chamber  (Whiterock Cave) Malaysia 39,000 http://www.mulucaves.org 2012 300x200x100
             
24 Tham Toutche - Swallow Cave Thailand 38,690 Fabien Darne - List 2001  
             
25 Gua Kepayang (Sungai Baai) Indonesia 37,800 http://fabien.darne.free.fr/speleo/grandes_salles/ 1977 270x140
             
26 Kocain Big Room - Kocain Cave Turkey 37,200 Atlas - Great Caves of the World 1989  
             
27 Entrance Chamber - Ganduan Dong China 37,000 Wang Xun Yi, Cave Expeditions 1999  
             
28 Carlsbad Cavern Big Room USA 33,210 Atlas - Great Caves of the World 1989  
             
29 Grotta Gigante Italy 33,120 Fabien Darne - List 2001 240 x 138 x 132
             
30 Sotano de las Golondrinas (open to surface) Mexico 33,110 Atlas - Great Caves of the World 1989  
             
31 Chiquibul (Chamber)  - Actun Kabal Belize 32,090 Atlas - Great Caves of the World 1989  
             
31 Martel Dom ou Martel's Chamber - Skocjanske jame Slovenia 32,090 Atlas - Great Caves of the World 1989 308 x 89 - 123 x 106
             
32 Sala Gabor Halasi (Sistemul Humpleu) Romania 31,930 http://fabien.darne.free.fr/speleo/grandes_salles/ 1985 310x103x35
             
33 Tham Phuphaphet  - Swallow Cave                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Thailand 30,500 Axbridge Caving Group Journal 2001 1.03km loop
             
34 Xiji (Century) Chamber - West Cave, Leye China 27,500 Wang Xun Yi, Cave Expeditions 1999  
             
       The Largest Underground Chambers by Volume
           
  C A V E     N A M E COUNTRY AREA Mm3 SOURCE DATE
1 Luse Papua New Guinea 50.000 Atlas - Great Caves of the World 1989
           
2 Ora     (Doline) Papua New Guinea 29.000 Atlas - Great Caves of the World 1989
           
3 Minye     (Doline) Papua New Guinea 26.000 Atlas - Great Caves of the World 1989
           
4 De Xiao Cho Koo China 25.000 Atlas - Great Caves of the World 1989
           
5 sima mayor de Sarisarinama     (Doline?) Venezuela 18.000 Atlas - Great Caves of the World 1989
           
6 sotano del Barro (open to serface) Mexico 15.000 Atlas - Great Caves of the World 1989
           
7 Kavakuna Papua New Guinea 15.000 Atlas - Great Caves of the World 1989
           
8 Korikobi Papua New Guinea 14.600 Atlas - Great Caves of the World 1989
           
9 Miaos Room - Gebihe system China 12.800 Fabien Darne - List 2001 700 x 215 x 70-100
           
10 Sarawak Malaysia 16.270 Atlas - Great Caves of the World 1989 600 x 415 x 100
           
11 Salle de la Verna France 10.535 Fabien Darne - List 1989 255 x 245 x 180
           
12 sotano de las Golondrinas (open to surface) Mexico 5.000 Atlas - Great Caves of the World 1989
           
13 Korikobi Papua New Guinea 5.000 Atlas - Great Caves of the World 1989
           
14 Benua Papua New Guinea 5.000 Atlas - Great Caves of the World 1989
           
15 Torca del Carlista - La Grand Sala del GEV Spain 4.000 Atlas - Great Caves of the World 1989 520 x 245
           
       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 2010 36,9000 Mm3