| The Largest Underground Chambers by Surface Area | ||||||
| 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 | 700 x 400 x 70 |
| 2 | Miaos Room - Gebihe system | China | 150,500 | Fabien Darne - List | 2001 | 700 x 215 x 70-100 |
| 3 | Tlamanictli (TZ1) | Mexico | 125,000 | Richard Grebeude | 2006 | 250 x 500 |
| 4 | Ghar -e- Dosar | Iran | 81,500 | http://iransplo.com/newsDetail.aspx?mode=1&id=432 | 2013 | 365 x 265 |
| 5 | Xiniu (Rhino) Chamber | China | 80,000 | Wang Xun Yi, Cave Expeditions | 1999 | 400 x 200 |
| 6 | Torca del Carlista - La Grand Sala del GEV | Spain | 76,620 | Atlas - Great Caves of the World | 1989 | 520 x 245 |
| 7 | One big room ? | Laos | 70,000 | Fabien Darne - List | 2001 | |
| 8 | Sistema TZ2-TZ7 | Mexico | 60,000 | Richard Grebeude | 2006 | 200 x 300 |
| 9 | Sala Gigantilo | Romania | 59,607 | http://sghbern.ch/romania/ | 1989 | 537x111x35 |
| 10 | Majlis al Jinn - Majlis al Jinn | Oman | 58,000 | Atlas - Great Caves of the World | 1989 | |
| 10 | Api Chamber (Whiterock Cave) | Malaysia | 58,000 | 2008 intern report | 2008 | 300x200x100 |
| 11 | Salle de la Verna | France | 51,000 | Fabien Darne - List | 1989 | 255 x 245 x 180 |
| 12 | Belize Chamber - Actun Tun Kul | Belize | 50,050 | Atlas - Great Caves of the World | 1989 | |
| 13 | Salle de l'Eclipse - Gouffe des Partages | France | 48,300 | http://fabien.darne.free.fr/speleo/grandes_salles/ | 2001 | 330 x 140 x 40 |
| 14 | Salle Tuke - Reseau Minye - Tevi Oro | Papua New Guinea | 48,000 | http://fabien.darne.free.fr/speleo/grandes_salles/ | 2001 | 240x200x130 |
| 15 | Weibu Chamber - Chijin Dong | China | 46,200 | Wang Xun Yi, Cave Expeditions | 1999 | 400 x 108 |
| 16 | Entrance Chamber - Xiong Jia He Da Dong | China | 43,200 | Wang Xun Yi, Cave Expeditions | 1999 | |
| 16 | Panayoran Chamber - langun Cave | Philippines | 43,200 | Speleologia No.17 | 1987 | 270 x 140 x 40 |
| 17 | Gruta de Villa Garcia | Mexico | 40,820 | Atlas - Great Caves of the World | 1989 | |
| 18 | Salon de Gigantes - Gruta del Palmito (Bustamante) | Mexico | 39,730 | Fabien Darne - List | 2001 | |
| 19 | Tham Toutche - Swallow Cave | Thailand | 38,690 | Fabien Darne - List | 2001 | |
| 21 | Gua Kepayang (Sungai Baai) | Indonesia | 37,800 | http://fabien.darne.free.fr/speleo/grandes_salles/ | 1977 | 270x140 |
| 22 | Kocain Big Room - Kocain Cave | Turkey | 37,200 | Atlas - Great Caves of the World | 1989 | |
| 23 | Entrance Chamber - Ganduan Dong | China | 37,000 | Wang Xun Yi, Cave Expeditions | 1999 | |
| 24 | Carlsbad Cavern Big Room | USA | 33,210 | Atlas - Great Caves of the World | 1989 | |
| 25 | Grotta Gigante | Italy | 33,120 | Fabien Darne - List | 2001 | 240 x 138 x 132 |
| 26 | Sotano de las Golondrinas (open to surface) | Mexico | 33,110 | Atlas - Great Caves of the World | 1989 | |
| 27 | Chiquibul (Chamber) - Actun A | Belize | 32,090 | Atlas - Great Caves of the World | 1989 | |
| 28 | Martel Dom ou Martel's Chamber - Skocjanske jame | Slovenia | 32,090 | Atlas - Great Caves of the World | 1989 | 308 x 89 - 123 x 106 |
| 29 | Sala Gabor Halasi (Sistemul Humpleu) | Romania | 31,930 | http://fabien.darne.free.fr/speleo/grandes_salles/ | 1985 | 310x103x35 |
| 30 | Tham Phuphaphet | Thailand | 30,500 | Axbridge Caving Group Journal | 2001 | 1.03km loop |
| 31 | 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 | Atlas - Great Caves of the World | 1989 | |
| 2 | Ora (Doline) | Papua New Guinea | 29 | Atlas - Great Caves of the World | 1989 | |
| 3 | Minye (Doline) | Papua New Guinea | 26 | Atlas - Great Caves of the World | 1989 | |
| 4 | De Xiao Cho Koo | China | 25 | Atlas - Great Caves of the World | 1989 | |
| 5 | sima mayor de Sarisarinama (Doline?) | Venezuela | 18 | Atlas - Great Caves of the World | 1989 | |
| 6 | sotano del Barro (open to serface) | Mexico | 15 | Atlas - Great Caves of the World | 1989 | |
| 7 | Kavakuna | Papua New Guinea | 15 | Atlas - Great Caves of the World | 1989 | |
| 8 | Korikobi | Papua New Guinea | 14.6 | Atlas - Great Caves of the World | 1989 | |
| 9 | Miaos Room - Gebihe system | China | 13 | Fabien Darne - List | 2001 | 700 x 215 x 70-100 |
| 10 | Sarawak | Malaysia | 16 | Atlas - Great Caves of the World | 1989 | 600 x 415 x 100 |
| 11 | Salle de la Verna | France | 11 | Fabien Darne - List | 1989 | 255 x 245 x 180 |
| 12 | sotano de las Golondrinas (open to surface) | Mexico | 5 | Atlas - Great Caves of the World | 1989 | |
| 13 | Korikobi | Papua New Guinea | 5 | Atlas - Great Caves of the World | 1989 | |
| 14 | Benua | Papua New Guinea | 5 | Atlas - Great Caves of the World | 1989 | |
| 15 | Torca del Carlista - La Grand Sala del GEV | Spain | 4 | 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 | ||
| Han Son Doong | Vietnam | 200hx145wx5k | http://is.gd/uiin | Apr-09 | 200m high x 140-150 wide x 5km | |
| estimate | ||||||