WORLD LONGEST UNDERWATER CAVES   Compiled by: Bob Gulden / Jim Coke (QRSS) - Oct. 27, 2014
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The NSS Geo2 Long & Deep Caves Web Site is at http://www.caverbob.com           Copyright 2014 NSS Geo2, Bob Gulden NSS#13188LF
Do not ask for cave locations, I will not give them out.  
LENGTH LENGTH DEPTH DEPTH
# CAVE  NAME COUNTRY STATE COUNTY MILES METERS FEET METERS SOURCE DATE
1 Sistema Sac Actun (Nohoch Nah Chich)     (Dry & Under Water) Mexico Quintana Roo Tulum 206.913 332994 427 130.2 QRSS Long Caves List Jun-14
2 Sistema Ox Bel Ha                Mexico Quintana Roo Tulum 159.636 256909 332 101.2 QRSS Long Caves List Jun-14
3 Sistema Dos Ojos Mexico Quintana Roo Tulum 51.760 83300 391 119.1 QRSS Long Caves List Jun-14
4 Sistema K'oox Baal  - Sistema Tux Kupaxa     (Dry & Under Water)     Mexico Quintana Roo Tulum 47.143 75870 112 34.2 QRSS Long Caves List Jun-14
5 Cenote Xunaan Ha     (Dry & Under Water) Mexico Quintana Roo Tulum 37.559 60445 111 33.8 QRSS Long Caves List Jun-14
6 Wakulla-Leon Sinks Cave System           U.S.A. Florida Leon/Wakulla 31.990 51483 350 106.7 Die langsten Unterwasserhohlensysteme der welt, Oliver Knab Jun-13
7 Sistema Pool Tunich Mexico Quintana Roo Xcaret 23.784 38276 79 24.0 QRSS Long Caves List Jun-14
8 Sistema Toh Ha                    Mexico Quintana Roo Tulum 20.457 32922 42 12.8 QRSS Long Caves List Jun-14
9 Sistema Sand Crack Mexico Quintana Roo Tulum 16.619 26746 58 17.7 QRSS Long Caves List Jun-14
10 Sistema Nohoch Pek Mexico Quintana Roo Tulum 15.634 25160 61 18.6 QRSS Long Caves List Jun-14
11 Beacon Woods - Waynes World System               U.S.A. Florida Pasco 11.364 18289 160 48.8 Die langsten Unterwasserhohlensysteme der welt, Oliver Knab Jun-13
12 Sistema Ponderosa      (Dry & Under Water)          Mexico Quintana Roo Tulum 10.327 16619 93 28.4 QRSS Long Caves List Jun-14
13 Cathedral-Falmouth System        U.S.A. Florida Suwannee 8.939 14386 190 57.9 Die langsten Unterwasserhohlensysteme der welt, Oliver Knab Jun-13
14 Sistema Murena  Aak Kimin Mexico Quintana Roo Tulum 8.866 14269 225 68.6 QRSS Long Caves List Jun-14
15 Sistema Dos Pisos              Mexico Quintana Roo Tulum 8.809 14176 80 24.4 QRSS Long Caves List Jun-14
16 Cova de sa Gleda - Camp des Pou.    Spain Balearics Manacor 8.389 13500 82 25.0 Gracia/Clamor/Gamundi Jan-13
17 Sistema Caterpillar      Mexico Quintana Roo Felipe Carrillo Puerto 8.359 13452 89 27.1 QRSS Long Caves List Jun-14
18 Sistema Camilo                 Mexico Quintana Roo Tulum 8.324 13396 82 25.0 QRSS Long Caves List Jun-14
19 Old Bellamy (Derekson)(Santa Fe River Rise) Cave Sys.  U.S.A. Florida Alachua 7.865 12657 160 48.8 Die langsten Unterwasserhohlensysteme der welt, Oliver Knab Jun-13
20 Sistema Doggi     Mexico Quintana Roo Felipe Carrillo Puerto 7.479 12036 48 14.6 QRSS Long Caves List Jun-14
21 Peacock Cave I-II System         U.S.A. Florida Suwanee 7.200 11587 210 64.0 Richard Blackburn e-mail Jun-13
22 Cueva Quebrada         Mexico Quintana Roo Tulum 7.180 11555 31 9.4 QRSS Long Caves List Jun-14
23 Sistema Cupul Ha   (Dry & Underwater) Mexico Quintana Roo Tulum 6.930 11152 46 14.0 QRSS Long Caves List Jun-14
24 Sistema Ek Be                    Mexico Quintana Roo Tulum 6.155 9905 60 18.3 QRSS Long Caves List Jun-14
25 Sistema Muul Thre              Mexico Quintana Roo Tulum 5.983 9629 63 19.2 QRSS Long Caves List Jun-14
26 Sisema Chac Mol                 Mexico Quintana Roo Tulum 5.712 9193 93 28.3 QRSS Long Caves List Jun-14
27 Lucayan Caverns        Bahamas ? ? 5.705 9181 0 0.0 Exley, Caverns  
28 Sistema Minotauro                Mexico Quintana Roo Tulum 5.430 8739 55 16.8 QRSS Long Caves List Jun-14
29 Hole in the Wall(Rock Spring) Cave        U.S.A. Florida Jackson 5.252 8452 139 31.1 Jason Richards Facebook Oct-14
30 Tank Cave      Australia ? ? 4.993 8035 0 0.0 Die langsten Unterwasserholensysteme der Welt Sep-12
31 Cenote Zapote                    Mexico Quintana Roo Tulum 4.890 7869 90 27.4 QRSS Long Caves List Jun-14
32 Madison Blue Spring              U.S.A. Florida Madison 4.831 7775 120 36.6 Bruic Jun-05
33 Sistema El Puente Mexico Quintana Roo Tulum 4.826 7766 296 90.2 QRSS Long Caves List Jun-14
34 Telford Springs                  U.S.A. Florida Suwanee 4.735 7620 72 21.9 Caves and Karst of Florida, 2008 NSS Convention Jul-13
35 School Sink      U.S.A. Florida Pasco 4.598 7400 0 0.0 Die langsten Unterwasserholensysteme der Welt Sep-13
36 Devils Eye Cave System           U.S.A. Florida Gilchrist 4.458 7174 160 48.8 Die langsten Unterwasserhohlensysteme der welt, Oliver Knab Jun-13
37 Manatee Springs Cave System       U.S.A. Florida Levy 4.427 7125 95 29.0 Die langsten Unterwasserhohlensysteme der welt, Oliver Knab Jun-13
38 Cenote Muk K'in   ?     Mexico Quintana Roo Felipe Carrillo Puerto 4.389 7063 55 16.8 QRSS Long Caves List Jun-14
39 Hart Springs System       U.S.A. Florida Gilchrist 4.303 6925 80 24.4 Die langsten Unterwasserhohlensysteme der welt, Oliver Knab Jun-13
40 Entrada Boca Paila                    Mexico Quintana Roo Tulum 4.281 6890 88 26.8 QRSS Long Caves List Jun-14
41 Chip's Hole/Cals System (Pipeline)    U.S.A. Florida Wakalla 4.222 6795 306 93.3 WKPP - Casey McKinlay e-mail Jul-13
42 Sistema Xel-Ha Norte         Mexico Quintana Roo Tulum 4.133 6652 44 13.4 QRSS Long Caves List Jun-14
43 Grotta della Utopia       Italy ? ? 4.117 6625 0 0.0 Die langsten Unterwasserholensysteme der Welt Sep-12
44 Three Island Cave                Canada Quebec ? 4.078 6563 38 11.6 Ian McKenzie e-mail Jan-13
45 Cocklebiddy Cave  (Under Water) Australia Western Australia Nullarbor Plain 4.039 6500 0 0.0 John e-mail Mar-08
46 Sistema Taj Mahal (Dry & Underwater) Mexico Quintana Roo Tulum 3.997 6433 100 30.5 QRSS Long Caves List Jun-14
47 Bananeira Cave      Brazil ? ? 3.977 6400 0 0.0 Die langsten Unterwasserholensysteme der Welt Sep-12
48 Cueva Aerolito            Mexico Quintana Roo Tulum 3.790 6100 90 27.4 QRSS Long Caves List Jun-14
49 Dan's Cave      Bahamas ? ? 3.789 6098 0 0.0 Die langsten Unterwasserholensysteme der Welt Sep-12
50 Bonnet Spring                    U.S.A. Florida Suwannee 3.788 6096 132 40.2 Caves and Karst of Florida, 2008 NSS Convention Jul-13
51 Blue Spring-Green Sink Cave System (Yana)    U.S.A. Florida Lafayette 3.788 6096 60 18.3 Sheck Exley May-80
52 Doux de Coly                     France ? ? 3.759 6050 0 0.0 Die langsten Unterwasserholensysteme der Welt Sep-12
53 Entrada Caapechen  (Cenote Manatee)         Mexico Quintana Roo Tulum 3.689 5937 92 28.0 QRSS Long Caves List Jun-14
54 Sistema Joolis              Mexico Quintana Roo Tulum 3.671 5908 66 20.1 QRSS Long Caves List Jun-14
55 Hornsby Spring Cave System       U.S.A. Florida Alachua 3.651 5876 150 45.7 Sheck Exley May-80
56 Sistema Regina                   Mexico Quintana Roo Tulum 3.645 5866 117 35.7 QRSS Long Caves List Jun-14
57 Springs Cave, Jackson Blue       U.S.A. Florida Jackson 3.465 5576 160 48.8 Die langsten Unterwasserhohlensysteme der welt, Oliver Knab Jun-13
58 Cova des Coll     Spain Balearics Manacor 3.436 5529 0 0.0 Gracia/Clamor/Watkinson Jan-13
59 Sistema Actum Chen Mexico Quintana Roo Tulum 3.377 5435 82 25.0 QRSS Long Caves List Jun-14
60 Sistema Ah Kax Ha  (Chicken Ranch) Mexico Quintana Roo Tulum 3.247 5225 87 26.5 Gibb, Rouquette-Cathaia, Knudsen, 09/2011 Jun-14
61 Sistema Actun Koh                Mexico Quintana Roo Tulum 3.204 5156 54 16.5 QRSS Long Caves List Jun-14
62 Sistema Cangrejo     Mexico Quintana Roo Tulum 3.188 5131 70 21.3 QRSS Long Caves List Jun-14
63 Sistema Chi Keen Mexico Quintana Roo Tulum 3.102 4992 57 17.4 QRSS Long Caves List Jun-14
64 Cenote Tortuga           Mexico Quintana Roo Tulum 3.064 4931 90 27.4 QRSS Long Caves List Jun-14
65 Sistema Crustacea                Mexico Quintana Roo Tulum 3.032 4879 84 25.6 QRSS Long Caves List Jun-14
66 Sistema Dzonot Took             Mexico Quintana Roo Tulum 3.031 4878 54 16.5 QRSS Long Caves List Jun-14
67 Sistema Mosquito Factory Mexico Quintana Roo Tulum 2.669 4296 34 10.4 QRSS Long Caves List Jun-14
68 Cenote Chan Ayim             Mexico Quintana Roo Tulum 2.618 4214 97 29.6 QRSS Long Caves List Jun-14
69 Sistema Mundo Escondido    ? Mexico Quintana Roo Tulum 2.602 4187 86 26.2 QRSS Long Caves List Jun-14
70 Sistema Tatich (Nuhuch Actum) Mexico Quintana Roo Tulum 2.582 4156 24 7.3 Gibb, Rouquette-Cathaia, 05/2011 Jun-14
71 Ka-Lag Dzonot Mexico Quintana Roo Tulum 2.538 4085 48 14.6 QRSS Long Caves List Jun-14
72 Moinar Janos Cave               Hungary Budapest ? 2.485 4000 236 72.0 Tibor Tihanyi e-mail Jun-13
73 Cenote Burrodromo                Mexico Quintana Roo Tulum 2.462 3962 47 14.3 QRSS Long Caves List Jun-14
74 Sistema X'cacel Pequefia   ? Mexico Quintana Roo Tulum 2.438 3924 27 8.2 QRSS Long Caves List Jun-14
75 Cow Crap Cave  (Under Water) U.S.A. Tennessee Rutherford 2.437 3922 144 43.9 Jason Richards e-mail Aug-12
76 Gervais Cave                     Canada Ontario ? 2.428 3907 30 9.1 Ian McKenzie e-mail Jan-13
77 Natural Bridge System, St Marks    U.S.A. Florida Wakalla 2.293 3690 110 33.5 WKPP - Casey McKinlay e-mail Jul-13
78 Sistem Ich Tunich                Mexico Quintana Roo Tulum 2.278 3666 54 16.5 QRSS Long Caves List Jun-14
79 Indian Spring (Creek) Cave       U.S.A. Florida Wakalla 2.253 3626 160 48.8 Caves and Karst of Florida, 2008 NSS Convention Jul-13
80 Cenote Herradura     ?  Mexico Quintana Roo Tulum 2.211 3558 54 16.5 QRSS Long Caves List Jun-14
81 Sistema Dos Pies                 Mexico Quintana Roo Tulum 2.185 3516 43 13.1 QRSS Long Caves List Jun-14
82 Jasper Blue Spring U.S.A. Tennessee Marion 2.051 3301 144 43.9 Jason Richards e-mail Mar-13
83 M2 Blue                        U.S.A. Florida Madison 2.003 3224 147 44.8 NSS News V50N4P94 Not on Fla. Long cave list Apr-92
84 Ordinskaya Cave       (Gypsum)  Russia Perm Region Orda District 1.988 3200 164 50.0 Ulyana Zhakova e-mail Mar-13
85 Phantom Springs Cave U.S.A. Texas Jeff Davis 1.948 3136 493 150.3 Texas Speleological Survey via Jerry Atkinson e-mail Nov-13
86 Sistema Choko Pek Mexico Quintana Roo Tulum 1.943 3127 48 14.6 QRSS Long Caves List Jun-14
87 Giant Cave                       Belize ? ? 1.936 3116 0 0.0 Exley  
88 Sistema Luna Azul    Mexico Quintana Roo Tulum 1.928 3103 71 21.6 QRSS Long Caves List Aug-12
89 Weeki Wachee Spring   U.S.A. Florida Hernando 1.894 3048 407 124.1 Caves and Karst of Florida, 2008 NSS Convention Jul-13
90 Lake Tarpon-Tarpon Springs System       U.S.A. Florida Pinellas 1.894 3048 170 51.8 Caves and Karst of Florida, 2008 NSS Convention Jul-13
91 Sistema Ramon  Mexico Quintana Roo Tulum 1.836 2954 104 31.7 QRSS Long Caves List Jun-14
92 Sistema Carwash Mexico Quintana Roo Tulum 1.831 2946 87 26.5 QRSS Long Caves List Jun-14
93 Sistema Nohoch Kai    Mexico Quintana Roo Tulum 1.763 2838 59 18.0 QRSS Long Caves List Jun-14
94 Sistema Miguel                 Mexico Quintana Roo Tulum 1.760 2832 60 18.3 QRSS Long Caves List Jun-14
95 Cenote Subul Mexico Quintana Roo Tulum 1.754 2823 49 14.9 QRSS Long Caves List Jun-14
96 Sistema Ox Pe Pool Mexico Quintana Roo Tulum 1.729 2783 85 25.9 QRSS Long Caves List Jun-14
97 Burnabbie Cave           Australia Western Australia Nullarbor Plain 1.709 2750 0 0.0 Paul Hosie via OZCavers mailing list Nov-12
98 Cenote K'oxul       ?    Mexico Quintana Roo Tulum 1.560 2511 58 17.7 QRSS Long Caves List Jun-14
99 Cenote Cocodrilo Mexico Quintana Roo Tulum 1.549 2493 57 17.4 QRSS Long Caves List Jun-14
100 Sistema Casa del Jaguar  (Dry & Underwater) Mexico Quintana Roo Tulum 1.534 2468 29 8.8 QRSS Long Caves List Jun-14
101 Cenote Maya (Junea)     ?         Mexico Quintana Roo Tulum 1.532 2465 54 16.5 QRSS Long Caves List Jun-14
102 Source de Bestouan               France ? ? 1.529 2461 0 0.0 UWS V18N6 Jun-05
103 Sistema Zebra                    Mexico Quintana Roo Tulum 1.518 2443 58 17.7 QRSS Long Caves List Jun-14
104 Sistema Dos Coronas Mexico Quintana Roo Tulum 1.498 2410 52 16.0 QRSS Long Caves List Jun-14
105 Peacock III Cave Syphon          U.S.A. Florida Suwannee 1.466 2359 210 64.0 M.Poucher Jun-05
106 Covol del Veci        Italy ? ? 1.455 2342 0 0.0 UWS V18N6 Jun-05
107 Laguna Lagarto     ?              Mexico Quintana Roo Tulum 1.431 2303 36 11.0 QRSS Long Caves List Jun-14
108 Cenote Pepem Actun     Mexico Quintana Roo Tulum 1.389 2236 89 27.1 QRSS Long Caves List Jun-14
109 Cenote Chi Chan K'uk'um      Mexico Quintana Roo Tulum 1.387 2232 44 13.4 QRSS Long Caves List Jun-14
110 Sistema Ak Tulum     ? Mexico Quintana Roo Tulum 1.386 2231 51 15.5 QRSS Long Caves List Jun-14
111 Cenote Sole (Sunscape)       Mexico Quintana Roo Tulum 1.381 2223 33 10.1 QRSS Long Caves List Jun-14
112 Sistema Rudy Sanchez              Mexico Quintana Roo Tulum 1.370 2205 61 18.6 QRSS Long Caves List Jun-14
113 Sally Ward Cave                  U.S.A. Florida Wakulla 1.364 2195 350 106.7 Caves and Karst of Florida, 2008 NSS Convention Jul-13
114 Lineeater (Stevenson Spring)    U.S.A. Florida Hamilton 1.364 2195 60 18.3 Bryant, et.al. Jun-05
115 Roubidoux Spring      U.S.A. Missouri Pulaski 1.352 2176 266 81.1 Steve Gridley e-mail Dec-13
116 Sistema Chakalal             Mexico Quintana Roo Tulum 1.348 2170 22 6.7 QRSS Long Caves List Jun-14
117 Cenote Kiix Pepem    Mexico Quintana Roo Tulum 1.343 2162 44 13.4 QRSS Long Caves List Jun-14
118 Sistema Carrillo     Mexico Quintana Roo Tulum 1.332 2144 26 7.9 QRSS Long Caves List Jun-14
119 Sistema Kachkalak Mexico Quintana Roo Tulum 1.317 2120 44 13.4 QRSS Long Caves List Jun-14
120 Mirial Libya Cyrenaical Banghazi 1.315 2117 0 0.0 Atlas Great Caves of the World 1989
121 Cueva Aak Kimin (Yai-ku Lagoon)        ?         Mexico Quintana Roo Tulum 1.243 2001 225 68.6 QRSS Long Caves List Jun-14
122 Emergence du Ressell             France ? ? 1.243 2000 265 80.8 Buchaly, Waldbrener Jun-05
123 Laguna Nonec                     Mexico Quintana Roo Tulum 1.243 2000 35 10.7 QRSS Long Caves List Jun-14
124 Sistema Muuch Mexico Quintana Roo Tulum 1.238 1992 18 5.5 Gibb, Knudsen, 05/2011 Jun-14
125 Sistema Sac Pepem  (Dry & Underwater) Mexico Quintana Roo Tulum 1.237 1990 47 14.3 QRSS Long Caves List Jun-14
126 Sistema Yang kai                   Mexico Quintana Roo Tulum 1.224 1970 69 21.0 QRSS Long Caves List Jun-14
127 Leopard Frog Cave                Canada ? ? 1.222 1966 0 0.0 Steve Worthington e-mail May-13
128 Cenote Tu cud'tang Che Mexico Quintana Roo Tulum 1.183 1904 69 21.0 QRSS Long Caves List Jun-14
129 Sistema Ixchel Mexico Quintana Roo Solidaridad 1.173 1887 220 67.0 QRSS Long Caves List Jun-14
130 Sistema Domingos Mexico Quintana Roo Tulum 1.158 1863 38 11.6 QRSS Long Caves List Jun-14
131 Sistema Chico Upstream (Spring)              Mexico Quintana Roo Tulum 1.156 1861 59 18.0 QRSS Long Caves List Jun-14
132 Sistema Zebra             ?       Mexico Quintana Roo Tulum 1.141 1837 56 17.1 QRSS Long Caves List Jun-14
133 Eagles Nest       U.S.A. Florida Hernando 1.136 1828 315 96.0 Caves and Karst of Florida, 2008 NSS Convention Jul-13
134 Ellaville-Suwannacoochee System       U.S.A. Florida Suwannee 1.136 1828 155 47.2 Caves and Karst of Florida, 2008 NSS Convention Jul-13
135 Washington Blue Spring       U.S.A. Florida Washington 1.136 1828 0 0.0 Caves and Karst of Florida, 2008 NSS Convention Jul-13
136 Sistema Pierre's Hole      ?   Mexico Quintana Roo Tulum 1.123 1807 40 12.2 QRSS Long Caves List Jun-14
137 Sistema Vanilla Mexico Quintana Roo Tulum 1.074 1728 38 11.6 QRSS Long Caves List Jun-14
138 Cueva de La Atlantida (Tunnel )   (Lava Tube) Spain Canarias Island Lanzarote 1.072 1726 171 52.1 Grupo de Espeleologia Tebexcorade 4/8
139 Sistema Heder                    Mexico Quintana Roo Tulum 1.065 1714 80 24.4 QRSS Long Caves List Jun-14
140 Guy James Cave      U.S.A. Tennessee Rutherford 1.061 1708 42 12.8 Jason Richards e-mail Nov-13
141 Sistema Flor de Mayo   (Underwater) Mexico Quintana Roo Tulum 1.056 1700 66 20.1 QRSS Long Caves List Jun-14
142 Sistema Yax Tun      Mexico Quintana Roo Tulum 1.056 1699 59 18.0 QRSS Long Caves List Jun-14
143 Sistema Alomo      Mexico Quintana Roo Tulum 1.049 1688 30 9.1 QRSS Long Caves List Jun-14
144 Twin Spring Cave       U.S.A. Florida Jackson 1.043 1679 102 31.1 Caves and Karst of Florida, 2008 NSS Convention Jul-13
145 Source de Port Miou              France ? ? 1.038 1670 0 0.0 UWS V18N6 Jun-05
146 Blue Hole Spring       U.S.A. Florida Jackson 1.000 1609 0 0.0 Caves and Karst of Florida, 2008 NSS Convention Jul-13
147 Jacop's Well U.S.A. Texas Hays 0.822 1323 137 41.8 Gregg Tatum for JWEP email Oct-14
148 Goodenough Spring   U.S.A. Texas Val Verde 0.111 178 377 114.9 Texas Speleological Survey via Jerry Atkinson e-mail Nov-13