WORLD LONGEST UNDERWATER CAVES   Compiled by: Bob Gulden / Jim Coke (QRSS) - March 10, 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 193.071 310718 255 77.6 QRSS Long Caves List Mar-13
2 Sistema Ox Bel Ha                Mexico Quintana Roo Tulum 151.012 243031 114 34.7 QRSS Long Caves List Mar-13
3 Sistema K'oox Baal  - Sistema Tux Kupaxa          Mexico Quintana Roo Tulum 45.733 73600 86 26.2 QRSS Long Caves List Aug-12
4 Cenote Xunaan Ha     (Dry & Under Water) Mexico Quintana Roo Tulum 36.054 58024 111 33.7 QRSS Long Caves List Feb-11
5 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
6 Sistema Toh Ha                    Mexico Quintana Roo Tulum 19.271 31013 42 12.8 QRSS Long Caves List Aug-12
7 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
8 Sistema Ponderosa                Mexico Quintana Roo Tulum 9.332 15019 67 20.4 QRSS Long Caves List Aug-12
9 Cathedral-Falmouth System        U.S.A. Florida Suwannee 8.939 14386 190 57.9 Die langsten Unterwasserhohlensysteme der welt, Oliver Knab Jun-13
10 Sistema Dos Pisos              Mexico Quintana Roo Tulum 8.809 14176 80 24.4 QRSS Long Caves List Aug-12
11 Cova de sa Gleda - Camp des Pou.    Spain Balearics Manacor 8.389 13500 82 25.0 Gracia/Clamor/Gamundi Jan-13
12 Sistema Camilo                 Mexico Quintana Roo Tulum 8.027 12918 82 25.0 QRSS Long Caves List Aug-12
13 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
14 Peacock Cave I-II System         U.S.A. Florida Suwanee 7.200 11587 210 64.0 Richard Blackburn e-mail Jun-13
15 Sistema Muul 3              Mexico Quintana Roo Tulum 5.983 9629 63 19.2 QRSS Long Caves List Aug-12
16 Sistema Ek Be                    Mexico Quintana Roo Tulum 5.846 9408 60 18.3 QRSS Long Caves List Aug-12
17 Sisema Chac Mol                 Mexico Quintana Roo Tulum 5.712 9193 93 28.3 QRSS Long Caves List Aug-12
18 Lucayan Caverns        Bahamas ? ? 5.705 9181 0 0.0 Exley, Caverns  
19 Cueva Quebrada         Mexico Cozumel ? 5.543 8921 31 9.4 QRSS Long Caves List Feb-13
20 Sistema Doggi     Mexico Quintana Roo Felipe Carrillo Puerto 5.374 8648 48 14.6 QRSS Long Caves List Aug-12
21 Sistema Minotauro                Mexico Quintana Roo Tulum 5.016 8072 55 16.8 QRSS Long Caves List Aug-12
22 Tank Cave      Australia ? ? 4.993 8035 0 0.0 Die langsten Unterwasserholensysteme der Welt Sep-12
23 Cenote Zapote                    Mexico Quintana Roo Tulum 4.890 7869 90 27.4 QRSS Long Caves List Aug-12
24 Madison Blue Spring              U.S.A. Florida Madison 4.831 7775 120 36.6 Bruic Jun-05
25 Telford Springs                  U.S.A. Florida Suwanee 4.735 7620 72 21.9 Caves and Karst of Florida, 2008 NSS Convention Jul-13
26 Hole in the Wall(Rock Spring) Cave        U.S.A. Florida Jackson 4.604 7409 139 31.1 Jason Richards - e-mail Oct-13
27 School Sink      U.S.A. Florida Pasco 4.598 7400 0 0.0 Die langsten Unterwasserholensysteme der Welt Sep-13
28 Devils Eye Cave System           U.S.A. Florida Gilchrist 4.458 7174 160 48.8 Die langsten Unterwasserhohlensysteme der welt, Oliver Knab Jun-13
29 Manatee Springs Cave System       U.S.A. Florida Levy 4.427 7125 95 29.0 Die langsten Unterwasserhohlensysteme der welt, Oliver Knab Jun-13
30 Cenote Muk K'in     Mexico Quintana Roo Felipe Carrillo Puerto 4.389 7063 55 16.8 QRSS Long Caves List Aug-12
31 Hart Springs System       U.S.A. Florida Gilchrist 4.303 6925 80 24.4 Die langsten Unterwasserhohlensysteme der welt, Oliver Knab Jun-13
32 Entrada Boca Paila                    Mexico Quintana Roo Tulum 4.281 6890 88 26.8 QRSS Long Caves List Aug-12
33 Chip's Hole/Cals System (Pipeline)    U.S.A. Florida Wakalla 4.222 6795 306 93.3 WKPP - Casey McKinlay e-mail Jul-13
34 Sistema Xel-Ha Norte         Mexico Quintana Roo Tulum 4.133 6652 44 13.4 QRSS Long Caves List Aug-12
35 Grotta della Utopia       Italy ? ? 4.117 6625 0 0.0 Die langsten Unterwasserholensysteme der Welt Sep-12
36 Three Island Cave                Canada Quebec ? 4.078 6563 38 11.6 Ian McKenzie e-mail Jan-13
37 Cocklebiddy Cave  (Under Water) Australia Western Australia Nullarbor Plain 4.039 6500 0 0.0 John e-mail Mar-08
38 Bananeira Cave      Brazil ? ? 3.977 6400 0 0.0 Die langsten Unterwasserholensysteme der Welt Sep-12
39 Cueva Aerolito            Mexico Cozumel ? 3.791 6101 90 27.4 QRSS Jun-05
40 Dan's Cave      Bahamas ? ? 3.789 6098 0 0.0 Die langsten Unterwasserholensysteme der Welt Sep-12
41 Bonnet Spring                    U.S.A. Florida Suwannee 3.788 6096 132 40.2 Caves and Karst of Florida, 2008 NSS Convention Jul-13
42 Blue Spring-Green Sink Cave System (Yana)    U.S.A. Florida Lafayette 3.788 6096 60 18.3 Sheck Exley May-80
43 Doux de Coly                     France ? ? 3.759 6050 0 0.0 Die langsten Unterwasserholensysteme der Welt Sep-12
44 Entrada Caapechen  (Cenote Manatee)         Mexico Quintana Roo Tulum 3.689 5937 92 28.0 QRSS Long Caves List Aug-12
45 Sistema Joolis              Mexico Quintana Roo Tulum 3.671 5908 66 20.1 QRSS Long Caves List Aug-12
46 Hornsby Spring Cave System       U.S.A. Florida Alachua 3.651 5876 150 45.7 Sheck Exley May-80
47 Springs Cave, Jackson Blue       U.S.A. Florida Jackson 3.465 5576 160 48.8 Die langsten Unterwasserhohlensysteme der welt, Oliver Knab Jun-13
48 Cova des Coll     Spain Balearics Manacor 3.436 5529 0 0.0 Gracia/Clamor/Watkinson Jan-13
49 Sistema Regina                   Mexico Quintana Roo Tulum 3.430 5520 117 35.7 QRSS Long Caves List Aug-12
50 Sistema Caterpillar      Mexico Quintana Roo Felipe Carrillo Puerto 3.305 5319 72 21.9 QRSS Long Caves List Aug-12
51 Sistema Actun Koh                Mexico Quintana Roo Tulum 3.204 5156 54 16.5 QRSS Long Caves List Aug-12
52 Sistema Cangrejo     Mexico Quintana Roo Tulum 3.188 5131 70 21.3 QRSS Long Caves List Aug-12
53 Cenote Tortuga           Mexico Quintana Roo Tulum 3.064 4931 90 27.4 QRSS Long Caves List Aug-12
54 Sistema Crustacea                Mexico Quintana Roo Tulum 3.032 4879 84 25.6 QRSS Long Caves List Aug-12
55 Sistema Dzonot Took             Mexico Quintana Roo Tulum 3.031 4878 54 16.5 QRSS Long Caves List Aug-12
56 Sistema Ah Kax Ha  (Chicken Ranch) Mexico Quintana Roo Tulum 2.694 4336 87 26.5 Gibb, Rouquette-Cathaia, Knudsen, 09/2011 Aug-12
57 Cenote Chan Ayim             Mexico Quintana Roo Tulum 2.618 4214 97 29.6 QRSS Long Caves List Aug-12
58 Sistema Mundo Escondido     Mexico Quintana Roo Tulum 2.602 4187 86 26.2 QRSS Long Caves List Aug-12
59 Sistema Tatich (Nuhuch Actum) Mexico Quintana Roo Tulum 2.582 4156 24 7.3 Gibb, Rouquette-Cathaia, 05/2011 Aug-12
60 Moinar Janos Cave               Hungary Budapest ? 2.485 4000 236 72.0 Tibor Tihanyi e-mail Jun-13
61 Cenote Burrodromo                Mexico Quintana Roo Tulum 2.462 3962 47 14.3 QRSS Long Caves List Aug-12
62 Sistema X'cacel Pequefia Mexico Quintana Roo Tulum 2.438 3924 27 8.2 QRSS Long Caves List Aug-12
63 Cow Crap Cave  (Under Water) U.S.A. Tennessee Rutherford 2.437 3922 144 43.9 Jason Richards e-mail Aug-12
64 Gervais Cave                     Canada Ontario ? 2.428 3907 30 9.1 Ian McKenzie e-mail Jan-13
65 Natural Bridge System, St Marks    U.S.A. Florida Wakalla 2.293 3690 110 33.5 WKPP - Casey McKinlay e-mail Jul-13
66 Sistem Ich Tunich                Mexico Quintana Roo Tulum 2.278 3666 54 16.5 QRSS Long Caves List Aug-12
67 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
68 Cenote Herradura       Mexico Quintana Roo Tulum 2.211 3558 54 16.5 QRSS Long Caves List Aug-12
69 Sistema Dos Pies                 Mexico Quintana Roo Tulum 2.185 3516 43 13.1 QRSS Long Caves List Aug-12
70 Jasper Blue Spring U.S.A. Tennessee Marion 2.051 3301 144 43.9 Jason Richards e-mail Mar-13
71 M2 Blue                        U.S.A. Florida Madison 2.003 3224 147 44.8 NSS News V50N4P94 Not on Fla. Long cave list Apr-92
72 Ordinskaya Cave       (Gypsum)  Russia Perm Region Orda District 1.988 3200 164 50.0 Ulyana Zhakova e-mail Mar-13
73 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
74 Giant Cave                       Belize ? ? 1.936 3116 0 0.0 Exley  
75 Sistema Luna Azul    Mexico Quintana Roo Tulum 1.928 3103 71 21.6 QRSS Long Caves List Aug-12
76 Weeki Wachee Spring   U.S.A. Florida Hernando 1.894 3048 407 124.1 Caves and Karst of Florida, 2008 NSS Convention Jul-13
77 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
78 Sistema Ramon  Mexico Quintana Roo Tulum 1.836 2954 104 31.7 QRSS Long Caves List Aug-12
79 Sistema Nohoch Kai    Mexico Quintana Roo Tulum 1.763 2838 59 18.0 QRSS Long Caves List Aug-12
80 Sistema Miguel                 Mexico Quintana Roo Tulum 1.760 2832 60 18.3 QRSS Long Caves List Aug-12
81 Sistema Ox Pe Pool Mexico Quintana Roo Tulum 1.729 2783 85 25.9 QRSS Long Caves List Aug-12
82 Burnabbie Cave           Australia Western Australia Nullarbor Plain 1.709 2750 0 0.0 Paul Hosie via OZCavers mailing list Nov-12
83 Cenote K'oxul           Mexico Quintana Roo Tulum 1.560 2511 58 17.7 QRSS Long Caves List Aug-12
84 Cenote Crocodrilo      Mexico Cozumel ? 1.549 2493 57 17.4 Jim Coke e-mail Jan-13
85 Cenote Maya (Junea)              Mexico Quintana Roo Tulum 1.532 2465 54 16.5 QRSS Long Caves List Aug-12
86 Source de Bestouan               France ? ? 1.529 2461 0 0.0 UWS V18N6 Jun-05
87 Peacock III Cave Syphon          U.S.A. Florida Suwannee 1.466 2359 210 64.0 M.Poucher Jun-05
88 Covol del Veci        Italy ? ? 1.455 2342 0 0.0 UWS V18N6 Jun-05
89 Laguna Lagarto                   Mexico Quintana Roo Tulum 1.431 2303 36 11.0 QRSS Long Caves List Aug-12
90 Cenote Pepem Actun     Mexico Quintana Roo Tulum 1.389 2236 89 27.1 QRSS Long Caves List Aug-12
91 Cenote Chi Chan K'uk'um      Mexico Quintana Roo Tulum 1.387 2232 44 13.4 QRSS Long Caves List Aug-12
92 Sistema Ak Tulum      Mexico Quintana Roo Tulum 1.386 2231 51 15.5 QRSS Long Caves List Aug-12
93 Cenote Sole (Sunscape)       Mexico Quintana Roo Tulum 1.381 2223 33 10.1 QRSS Long Caves List Aug-12
94 Sistema Rudy Sanchez              Mexico Quintana Roo Tulum 1.370 2204 61 18.6 QRSS Long Caves List Aug-12
95 Sally Ward Cave                  U.S.A. Florida Wakulla 1.364 2195 350 106.7 Caves and Karst of Florida, 2008 NSS Convention Jul-13
96 Lineeater (Stevenson Spring)    U.S.A. Florida Hamilton 1.364 2195 60 18.3 Bryant, et.al. Jun-05
97 Roubidoux Spring      U.S.A. Missouri Pulaski 1.352 2176 266 81.0 Steve Gridley e-mail Dec-13
98 Sistema Chakalal             Mexico Quintana Roo Tulum 1.348 2170 22 6.7 QRSS Long Caves List Aug-12
99 Cenote Kiix Pepem    Mexico Quintana Roo Tulum 1.343 2161 44 13.4 QRSS Long Caves List Aug-12
100 Sistema Carrillo     Mexico Quintana Roo Tulum 1.332 2144 26 7.9 QRSS Long Caves List Aug-12
101 Sistema Kachkalak Mexico Quintana Roo Tulum 1.317 2119 44 13.4 QRSS Long Caves List Aug-12
102 Mirial Libya Cyrenaical Banghazi 1.315 2117 0 0.0 Atlas Great Caves of the World 1989
103 Cueva Aak Kimin (Yai-ku Lagoon)                 Mexico Quintana Roo Tulum 1.243 2001 225 68.6 QRSS Long Caves List Aug-12
104 Emergence du Ressell             France ? ? 1.243 2000 265 80.8 Buchaly, Waldbrener Jun-05
105 Laguna Nonec                     Mexico Quintana Roo Tulum 1.243 2000 35 10.7 QRSS Long Caves List Aug-12
106 Sistema Yang kai                   Mexico Quintana Roo Tulum 1.224 1970 69 21.0 QRSS Long Caves List Aug-12
107 Leopard Frog Cave                Canada ? ? 1.222 1966 0 0.0 Steve Worthington e-mail May-13
108 Sistema Ixchel Mexico Quintana Roo Solidaridad 1.173 1887 220 67.0 QRSS Long Caves List Aug-12
109 Sistema Chico Upstream (Spring)              Mexico Quintana Roo Tulum 1.156 1861 59 18.0 QRSS Long Caves List Aug-12
110 Sistema Zebra                    Mexico Quintana Roo Tulum 1.141 1837 56 17.1 QRSS Long Caves List Aug-12
111 Eagles Nest       U.S.A. Florida Hernando 1.136 1828 315 96.0 Caves and Karst of Florida, 2008 NSS Convention Jul-13
112 Ellaville-Suwannacoochee System       U.S.A. Florida Suwannee 1.136 1828 155 47.2 Caves and Karst of Florida, 2008 NSS Convention Jul-13
113 Washington Blue Spring       U.S.A. Florida Washington 1.136 1828 0 0.0 Caves and Karst of Florida, 2008 NSS Convention Jul-13
114 Sistema Pierre's Hole         Mexico Quintana Roo Tulum 1.123 1807 40 12.2 QRSS Long Caves List Aug-12
115 Sistema Muuch Mexico Quintana Roo Tulum 1.101 1772 18 5.5 Gibb, Knudsen, 05/2011 Aug-12
116 Cueva de La Atlantida (Tunnel )   (Lava Tube) Spain Canarias Island Lanzarote 1.072 1726 171 52.1 Grupo de Espeleologia Tebexcorade 4/8
117 Sistema Heder                    Mexico Quintana Roo Tulum 1.065 1714 80 24.4 QRSS Long Caves List Aug-12
118 Guy James Cave      U.S.A. Tennessee Rutherford 1.061 1708 42 12.8 Jason Richards e-mail Nov-13
119 Sistema Flor de Mayo   (Underwater) Mexico Quintana Roo Tulum 1.056 1700 66 20.1 QRSS Long Caves List Aug-12
120 Sistema Yax Tun      Mexico Quintana Roo Tulum 1.056 1699 59 18.0 QRSS Long Caves List Aug-12
121 Sistema Alomo      Mexico Quintana Roo Tulum 1.049 1689 30 9.1 QRSS Long Caves List Aug-12
122 Twin Spring Cave       U.S.A. Florida Jackson 1.043 1679 102 31.1 Caves and Karst of Florida, 2008 NSS Convention Jul-13
123 Source de Port Miou              France ? ? 1.038 1670 0 0.0 UWS V18N6 Jun-05
124 Blue Hole Spring       U.S.A. Florida Jackson 1.000 1609 0 0.0 Caves and Karst of Florida, 2008 NSS Convention Jul-13
x Goodenough Spring   U.S.A. Texas Val Verde 0.111 178 377 114.9 Texas Speleological Survey via Jerry Atkinson e-mail Nov-13