WORLD LONGEST UNDERWATER CAVES   Compiled by: Bob Gulden / QRSS - Oct.01, 2019
Caves over 1,000 meters
Send updates and corrections to caverbob@aol.com
The NSS Geo2 Long & Deep Caves Web Site is at http://www.caverbob.com           Copyright 2019 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, Aktun Hu)     (Underwater+Dry) Mexico Quintana Roo Tulum 231.124 371958 391 119.2 QRSS Long Caves List 07/19
2 Sistema Ox Bel Ha                Mexico Quintana Roo Tulum 168.408 271026 188 57.3 QRSS Long Caves List 07/19
3 Entrada Boca Paila                    Mexico Quintana Roo Tulum 69.067 111152 88 26.8 QRSS Long Caves List 07/19
4 Sistema K'oox Baal  - Sistema Tux Kupaxa     (Underwater+Dry) Mexico Quintana Roo Tulum 62.405 100431 113 34.4 QRSS Long Caves List 07/19
5 Sistema Xunaan Ha     (Underwater+Dry) Mexico Quintana Roo Tulum 37.559 60445 111 33.8 QRSS Long Caves List 07/19
6 Wakulla-Leon Sinks Cave System           U.S.A. Florida Leon/Wakulla 33.760 54331 350 106.7 Casey McKinlay e-mail 10/17
7 Sistema Pool Tunich  (Under Water + Dry) Mexico Quintana Roo Tulum 31.318 50401 79 24.0 QRSS Long Caves List 07/19
8 Sistema Toh Ha    Mexico Quintana Roo Tulum 29.668 47746 42 12.8 QRSS Long Caves List 07/19
9 Sistema Caterpillar      Mexico Quintana Roo Felipe Carrillo Puerto 17.556 28253 89 27.1 QRSS Long Caves List 07/19
9 Sistema Sand Crack    Mexico Quintana Roo Tulum 16.619 26746 58 17.7 QRSS Long Caves List 07/19
10 Sistema Nohoch Pek - Muk K'in    Mexico Quintana Roo Tulum 15.634 25160 61 18.6 QRSS Long Caves List 07/19
11 Beacon Woods - Waynes World System               U.S.A. Florida Pasco 11.364 18289 160 48.8 Die langsten Unterwasserhohlensysteme der welt, Oliver Knab 06/16
12 Cathedral-Falmouth System        U.S.A. Florida Suwannee 11.199 18023 190 57.9 Casey McKinlay e-mail 10/17
13 Sistema Nohoch Kai    Mexico Quintana Roo Tulum 10.873 17499 85 25.9 QRSS Long Caves List 07/19
14 Cenote Zapote                    Mexico Quintana Roo Tulum 10.419 16768 92 28.0 QRSS Long Caves List 07/19
15 Sistema Doggi     Mexico Quintana Roo Felipe Carrillo Puerto 10.133 16308 51 15.5 QRSS Long Caves List 07/19
16 Entrada Caapechen  (Cenote Manatee)         Mexico Quintana Roo Tulum 9.717 15638 92 28.0 QRSS Long Caves List 07/19
17 Springs Cave, Jackson Blue       U.S.A. Florida Jackson 9.591 15436 100 30.5 Ben Martinez e-mail 04/18
18 Sistema Murena - Aak Kimin Mexico Quintana Roo Tulum 8.866 14269 225 68.6 QRSS Long Caves List 07/19
19 Sistema Dos Pisos              Mexico Quintana Roo Tulum 8.809 14176 80 24.4 QRSS Long Caves List 07/19
20 Pozo Azul Spain Burgos Covanera 8.448 13595 0 0.0 Igor Liorente e-mail; 08/16
21 Cova de sa Gleda - Camp des Pou.    Spain Balearics Manacor 8.389 13500 82 25.0 Gracia/Clamor/Gamundi 01/16
22 Sistema Camilo                 Mexico Quintana Roo Tulum 8.352 13442 82 25.0 QRSS Long Caves List 07/19
23 Sistema Sac Kai (Paachi Nah) Mexico Quintana Roo Tulum 8.208 13209 51 15.5 QRSS Long Caves List 07/19
24 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 06/16
25 Sistema Pandora Mexico Quintana Roo Tulum 7.730 12441 74 22.6 QRSS Long Caves List 07/19
26 Luraville / Telford System                U.S.A. Florida Suwanee 7.241 11653 72 21.9 Andy Higgie e-mail 02/18
27 Peacock Cave I-II System         U.S.A. Florida Suwanee 7.200 11587 210 64.0 Richard Blackburn e-mail 06/16
28 Cueva Quebrada         Mexico Quintana Roo Tulum 7.180 11555 31 9.4 QRSS Long Caves List 07/19
29 Sistema MOAC Mexico Quintana Roo Tulum 7.065 11369 46 14.0 QRSS Long Caves List 07/19
30 Sistema Cupul Ha     (Underwater+Dry) Mexico Quintana Roo Tulum 6.930 11152 46 14.0 QRSS Long Caves List 07/19
31 Sistema Chac Mol     (Underwater+Dry)        Mexico Quintana Roo Tulum 6.902 11108 93 28.3 QRSS Long Caves List 07/19
32 Sistema El Puente Mexico Quintana Roo Tulum 6.508 10474 296 90.2 QRSS Long Caves List 07/19
33 Sistema Taj Mahal     (Underwater+Dry) Mexico Quintana Roo Tulum 6.272 10094 98 29.9 QRSS Long Caves List 07/19
34 Sistema Muul Three      Mexico Quintana Roo Tulum 6.247 10053 63 19.2 QRSS Long Caves List 07/19
35 Chip's Hole/Cals System (Pipeline)    U.S.A. Florida Wakalla 6.240 10042 200 61.0 WKPP - Casey McKinlay e-mail 10/17
36 Sistema Ek Be                    Mexico Quintana Roo Tulum 6.155 9905 60 18.3 QRSS Long Caves List 07/19
37 Hole in the Wall(Rock Spring) Cave        U.S.A. Florida Jackson 5.780 9302 139 42.4 Jason Richards Facebook 05/17
38 Lucayan Caverns        Bahamas - - 5.705 9181 0 0.0 Exley, Caverns -
39 Sistema Dzonot Took Mexico Quintana Roo Tulum 5.503 8856 59 18.0 QRSS Long Caves List 07/19
39 Sistema Minotauro      (Underwater+dry)    Mexico Quintana Roo Tulum 5.484 8826 55 16.8 QRSS Long Caves List 07/19
40 Tank Cave      Australia South Australia - 4.993 8035 0 0.0 Die langsten Unterwasserholensysteme der Welt 09/16
41 Madison Blue Spring              U.S.A. Florida Madison 4.831 7775 120 36.6 Bruic 06/16
42 School Sink      U.S.A. Florida Pasco 4.598 7400 0 0.0 Die langsten Unterwasserholensysteme der Welt 09/16
43 Devils Eye Cave System           U.S.A. Florida Gilchrist 4.458 7174 160 48.8 Die langsten Unterwasserhohlensysteme der welt, Oliver Knab 06/16
44 Manatee Springs Cave System       U.S.A. Florida Levy 4.427 7125 95 29.0 Die langsten Unterwasserhohlensysteme der welt, Oliver Knab 06/16
45 Sistema Sac Pepem  Mexico Quintana Roo Tulum 4.402 7085 47 14.3 QRSS Long Caves List 07/19
46 Hart Springs System       U.S.A. Florida Gilchrist 4.303 6925 80 24.4 Die langsten Unterwasserhohlensysteme der welt, Oliver Knab 06/16
47 Sistema Ah Kax Ha  (Chicken Ranch) (Otra Avicola) Mexico Quintana Roo Tulum 4.134 6653 89 27.1 QRSS Long Caves List 07/19
48 Sistema Xel-Ha Norte         Mexico Quintana Roo Tulum 4.134 6652 44 13.4 QRSS Long Caves List 07/19
49 Grotta della Utopia       Italy - - 4.117 6625 0 0.0 Die langsten Unterwasserholensysteme der Welt 09/16
50 Three Island Cave                Canada Quebec - 4.078 6563 38 11.6 Ian McKenzie e-mail 01/16
51 Cocklebiddy Cave  (Under Water) Australia Western Australia Nullarbor Plain 4.039 6500 0 0.0 John e-mail 03/16
52 Bananeira Cave      Brazil - - 3.977 6400 0 0.0 Die langsten Unterwasserholensysteme der Welt 09/16
53 Cueva Aerolito            Mexico Cozumel - 3.791 6101 90 27.4 QRSS 06/16
54 Cueva Aerolito            Mexico Quintana Roo - 3.791 6100 90 27.4 QRSS Long Caves List 07/19
55 Dan's Cave      Bahamas - - 3.789 6098 0 0.0 Die langsten Unterwasserholensysteme der Welt 09/16
56 Bonnet Spring                    U.S.A. Florida Suwannee 3.788 6096 132 40.2 Caves and Karst of Florida, 2008 NSS Convention 07/16
57 Blue Spring-Green Sink Cave System (Yana)    U.S.A. Florida Lafayette 3.788 6096 60 18.3 Sheck Exley 05/80
58 Doux de Coly                     France - - 3.759 6050 0 0.0 Die langsten Unterwasserholensysteme der Welt 09/16
59 Sistema O'ho Tucha Mexico Quintana Roo Tulum 3.709 5969 82 25.0 QRSS Long Caves List 07/19
60 Sistema Joolis              Mexico Quintana Roo Tulum 3.671 5909 66 20.1 QRSS Long Caves List 07/19
61 Hornsby Spring Cave System       U.S.A. Florida Alachua 3.651 5876 150 45.7 Sheck Exley 05/80
62 Sistema Regina                   Mexico Quintana Roo Tulum 3.645 5866 117 35.7 Gibb, Rouquette-Cathaia, Knudsen, 09/2011 07/19
63 Sistema de los Metates Mexico Quintana Roo Tulum 3.578 5758 351 107.0 QRSS Long Caves List 07/19
64 Sistema Lost and Found Mexico Quintana Roo Tulum 3.575 5753 71 21.6 QRSS Long Caves List 07/19
65 Sistema Vecan  Mexico Quintana Roo Tulum 3.496 5626 89 27.1 QRSS Long Caves List 07/19
66 Cova des Coll     Spain Balearics Manacor 3.436 5529 0 0.0 Gracia/Clamor/Watkinson 01/16
67 Sistema Actum Chen Mexico Quintana Roo Tulum 3.377 5435 82 25.0 QRSS Long Caves List 07/19
68 Cenote Chan Ayim             Mexico Quintana Roo Tulum 3.296 5304 97 29.6 QRSS Long Caves List 07/19
69 Sistema Actun Koh                Mexico Quintana Roo Tulum 3.204 5156 54 16.5 QRSS Long Caves List 07/19
70 Sistema Chi Keen Mexico Quintana Roo Tulum 3.102 4992 57 17.4 QRSS Long Caves List 07/19
71 Cenote Tortuga           Mexico Quintana Roo Tulum 3.098 4985 90 27.4 QRSS Long Caves List 07/19
72 Sotano Akemati Mexico Puebla Ocotempa 3.056 4918 413 126.0 QRSS Long Caves List 09/19
73 Sistema Crustaccea Mexico Quintana Roo Tulum 3.032 4879 84 25.6 QRSS Long Caves List 07/19
74 Sistema Kachkalak Mexico Quintana Roo Tulum 2.981 4797 49 14.9 QRSS Long Caves List 07/19
75 Sistema Tumben Kuxtal Mexico Quintana Roo Tulum 2.888 4647 67 20.4 Gibb, Rouquette-Cathaia, 05/2011 07/19
76 Cenote Kan-Ha    Mexico Quintana Roo Tulum 2.847 4582 92 28.0 QRSS Long Caves List 07/19
77 Giant Cave                       Belize - - 2.773 4463 108 32.9  Jim Coke (QRSS) 05/16
78 Sistema Mosquito Factory Mexico Quintana Roo Tulum 2.669 4296 34 10.4 QRSS Long Caves List 07/19
79 Sistema Tatich (Nuhuch Actum) Mexico Quintana Roo Tulum 2.582 4156 24 7.3 QRSS Long Caves List 07/19
80 Sistema Xuux Teo (Two) Mexico Quintana Roo Tulum 2.514 4046 61 18.6 QRSS Long Caves List 07/19
81 Moinar Janos Cave               Hungary Budapest - 2.485 4000 236 72.0 Tibor Tihanyi e-mail 06/16
82 Sistema Red Pool Mexico Quintana Roo Tulum 2.474 3982 52 15.8 QRSS Long Caves List 07/19
83 Cenote Burrodromo                Mexico Quintana Roo Tulum 2.462 3962 47 14.3 QRSS Long Caves List 07/19
84 Cow Crap Cave  (Under Water) U.S.A. Tennessee Rutherford 2.437 3922 144 43.9 Jason Richards e-mail 08/16
85 Gervais Cave                     Canada Ontario - 2.428 3907 30 9.1 Ian McKenzie e-mail 01/16
86 Natural Bridge System, St Marks    U.S.A. Florida Wakalla 2.293 3690 110 33.5 WKPP - Casey McKinlay e-mail 07/16
87 Indian Spring (Creek) Cave       U.S.A. Florida Wakalla 2.253 3626 160 48.8 Caves and Karst of Florida, 2008 NSS Convention 07/16
88 Sistema Chac Bromelia Mexico Quintana Roo Tulum 2.191 3527 58 17.7 QRSS Long Caves List 07/19
89 Sistema Luna Azul    Mexico Quintana Roo Tulum 2.187 3520 71 21.6 QRSS Long Caves List 07/19
90 Sistema Dos Pies                 Mexico Quintana Roo Tulum 2.185 3516 43 13.1 QRSS Long Caves List 07/19
91 Oliero Spring Italy - - 2.175 3500 0 0.0 - 04/17
92 Sistema Muuch     (Underwater+Dry) Mexico Quintana Roo Tulum 2.156 3469 18 5.5 QRSS Long Caves List 07/19
93 Roubidoux Spring      U.S.A. Missouri Pulaski 2.132 3431 266 81.1 NSS News V75N6P16 06/17
94 Sistema Sak' Sak"    Mexico Quintana Roo Tulum 2.112 3399 51 15.5 QRSS Long Caves List 07/19
95 Sistema Choko Pek Mexico Quintana Roo Tulum 2.108 3393 48 14.6 QRSS Long Caves List 07/19
96 Sistema Ramon  Mexico Quintana Roo Tulum 2.098 3376 104 31.7 QRSS Long Caves List 07/19
97 Sistema Alomo-Colmena      Mexico Quintana Roo Tulum 2.056 3309 32 9.8 QRSS Long Caves List 07/19
98 Jasper Blue Spring U.S.A. Tennessee Marion 2.051 3301 144 43.9 Jason Richards e-mail 03/16
99 Sistema Carwash Mexico Quintana Roo Tulum 2.008 3232 87 26.5 QRSS Long Caves List 07/19
100 M2 Blue                        U.S.A. Florida Madison 2.003 3224 147 44.8 NSS News V50N4P94 Not on Fla. Long cave list 04/92
101 Ordinskaya Cave       (Gypsum)  Russia Perm Region Orda District 1.988 3200 164 50.0 Ulyana Zhakova e-mail 03/16
102 Phantom Springs Cave U.S.A. Texas Jeff Davis 1.948 3135 493 150.3 Texas Speleological Survey via Jerry Atkinson e-mail 01/16
103 Sistema Guerreros Sump Mexico Quintana Roo Tulum 1.923 3095 21 6.4 QRSS Long Caves List 07/19
104 Weeki Wachee Spring   U.S.A. Florida Hernando 1.894 3048 407 124.1 Caves and Karst of Florida, 2008 NSS Convention 07/16
105 Lake Tarpon-Tarpon Springs System       U.S.A. Florida Pinellas 1.894 3048 170 51.8 Caves and Karst of Florida, 2008 NSS Convention 07/16
106 Sistema Elementos Mexico Quintana Roo Tulum 1.859 2992 67 20.4 QRSS Long Caves List 07/19
107 Sistema El Zapotal Mexico Quintana Roo Tulum 1.834 2952 71 21.6 QRSS Long Caves List 07/19
108 Sistema Miguel                 Mexico Quintana Roo Tulum 1.760 2833 60 18.3 QRSS Long Caves List 07/19
109 Cenote Subul Mexico Quintana Roo Tulum 1.754 2823 49 14.9 QRSS Long Caves List 07/19
110 Sistema Flor de Mayo    Mexico Quintana Roo Tulum 1.726 2778 66 20.1 QRSS Long Caves List 07/19
111 Burnabbie Cave           Australia Western Australia Nullarbor Plain 1.709 2750 0 0.0 Paul Hosie via OZCavers mailing list 01/16
112 Vrulja Modric Croatia - - 1.706 2746 118 36.0 Mladen Garasic e-mail 01/16
113 Cenote Cocodrilo Mexico Quintana Roo Tulum 1.549 2493 57 17.3 QRSS Long Caves List 07/19
114 Twin Caves U.S.A. Florida Jackson 1.540 2478 106 32.3 Rob Neto e-mail 08/16
115 Sistema Casa del Jaguar     (Underwater+Dry) Mexico Quintana Roo Tulum 1.534 2468 29 8.8 QRSS Long Caves List 07/19
116 Source de Bestouan               France - - 1.529 2461 0 0.0 UWS V18N6 06/16
117 Sistema Zebra                    Mexico Quintana Roo Tulum 1.518 2443 58 17.7 QRSS Long Caves List 07/19
118 Peacock III Cave Syphon          U.S.A. Florida Suwannee 1.466 2359 210 64.0 M.Poucher 06/16
119 Sistema Swan Lake     (Underwater+Dry) Mexico Quintana Roo Tulum 1.456 2343 49 14.9 QRSS Long Caves List 07/19
120 Covol del Veci        Italy - - 1.455 2342 0 0.0 UWS V18N6 06/16
121 Cenote Pepem Actun     Mexico Quintana Roo Tulum 1.389 2236 89 27.1 QRSS Long Caves List 07/19
122 Cenote Chi Chan K'uk'um      Mexico Quintana Roo Tulum 1.387 2232 44 13.4 QRSS Long Caves List 07/19
123 Cenote Sole (Sunscape)       Mexico Quintana Roo Tulum 1.381 2223 33 10.1 QRSS Long Caves List 07/19
124 Sistema Rudy Sanchez              Mexico Quintana Roo Tulum 1.370 2205 61 18.6 QRSS Long Caves List 07/19
125 Sally Ward Cave                  U.S.A. Florida Wakulla 1.364 2195 350 106.7 Caves and Karst of Florida, 2008 NSS Convention 07/16
126 Lineeater (Stevenson Spring)    U.S.A. Florida Hamilton 1.364 2195 60 18.3 Bryant, et.al. 06/16
127 Sistema Chakalal             Mexico Quintana Roo Tulum 1.348 2170 22 6.7 QRSS Long Caves List 07/19
128 Sistema Carrillo     Mexico Quintana Roo Tulum 1.332 2144 26 7.9 QRSS Long Caves List 07/19
129 Dolinsjo Cave Sweden     1.327 2135 0 0.0 Micke Tilja 2016
130 Sistema Zukunoob Noh    (Underwater+Dry) Mexico Quintana Roo Tulum 1.325 2133 53 16.2 QRSS Long Caves List 07/19
131 Sistema Kachkalak Mexico Quintana Roo Tulum 1.317 2120 44 13.4 QRSS Long Caves List 07/19
132 Mirial Libya Cyrenaical Banghazi 1.315 2117 233 71.0 Atlas Great Caves of the World 06/17
133 Cenote Gran Zapote Mexico Quintana Roo Tulum 1.278 2056 38 11.6 QRSS Long Caves List 07/19
134 Sistema Ixchel  (underwater & Dry) Mexico Quintana Roo Solidaridad 1.264 2034 220 67.0 QRSS Long Caves List 07/19
135 Sistema Misterio Maya Mexico Quintana Roo Tulum 1.251 2013 37 11.3 QRSS Long Caves List 07/19
136 Emergence du Ressell             France - - 1.243 2000 265 80.8 Buchaly, Waldbrener 06/16
137 Laguna Nonec                     Mexico Quintana Roo Tulum 1.243 2000 35 10.7 QRSS Long Caves List 07/19
138 Sistema Hatzutz Actun Mexico Quintana Roo Tulum 1.230 1980 69 21.0 QRSS Long Caves List 07/19
139 Sistema Yang Kai                   Mexico Quintana Roo Tulum 1.224 1970 69 21.0 QRSS Long Caves List 07/19
140 Leopard Frog Cave                Canada - - 1.222 1966 0 0.0 Steve Worthington e-mail 05/16
141 Cenote Tu cud'tang Che Mexico Quintana Roo Tulum 1.183 1904 69 21.0 QRSS Long Caves List 07/19
142 Sistema Domingos Mexico Quintana Roo Tulum 1.158 1863 38 11.6 QRSS Long Caves List 07/19
143 Sistema Chico Upstream (Spring)              Mexico Quintana Roo Tulum 1.156 1861 59 18.0 QRSS Long Caves List 07/19
144 Eagles Nest       U.S.A. Florida Hernando 1.136 1828 315 96.0 Caves and Karst of Florida, 2008 NSS Convention 07/16
145 Ellaville-Suwannacoochee System       U.S.A. Florida Suwannee 1.136 1828 155 47.2 Caves and Karst of Florida, 2008 NSS Convention 07/16
146 Washington Blue Spring       U.S.A. Florida Washington 1.136 1828 0 0.0 Caves and Karst of Florida, 2008 NSS Convention 07/16
147 Cenote Dagobah Mexico Quintana Roo Tulum 1.125 1811 84 25.6 QRSS Long Caves List 07/19
148 Bozel Spring  U.S.A. Florida Jackson 1.080 1738 120 36.6 Rob Neto e-mail 08/16
149 Sistema Vanilla Mexico Quintana Roo Tulum 1.074 1728 38 11.6 QRSS Long Caves List 07/19
150 Wet Dream Cave Canada British Columbia Vancouver Island 1.073 1727 148 45.1 Jason Richards e-mail 08/16
151 Cueva de La Atlantida (Tunnel )   (Lava Tube) Spain Canarias Island Lanzarote 1.072 1726 171 52.1 Grupo de Espeleologia Tebexcorade 09/19
152 Sistema Heder                    Mexico Quintana Roo Tulum 1.065 1714 80 24.4 QRSS Long Caves List 07/19
153 Guy James Cave      U.S.A. Tennessee Rutherford 1.061 1708 42 12.8 Jason Richards e-mail 01/16
154 Sistema Yax Tun      Mexico Quintana Roo Tulum 1.056 1699 59 18.0 QRSS Long Caves List 07/19
155 Cenote Templo  Mexico Quintana Roo Tulum 1.044 1680 69 21.0 QRSS Long Caves List 07/19
156 Twin Spring Cave       U.S.A. Florida Jackson 1.043 1679 102 31.1 Caves and Karst of Florida, 2008 NSS Convention 07/16
157 Source de Port Miou              France - - 1.038 1670 0 0.0 UWS V18N6 06/16
158 Sistema Las Ninas   Mexico Quintana Roo Tulum 1.006 1619 40 12.2 QRSS Long Caves List 07/19
159 Sistema Uxuxubi      Mexico Quintana Roo Tulum 1.002 1612 51 15.5 QRSS Long Caves List 07/19
160 Blue Hole Spring       U.S.A. Florida Jackson 1.000 1609 0 0.0 Caves and Karst of Florida, 2008 NSS Convention 07/16
161 Sistems Umberto Mexico Quintana Roo Tulum 0.982 1581 36 11.0 QRSS Long Caves List 07/19
162 Sistema Playa Ranas Mexico Quintana Roo Tulum 0.955 1537 56 17.1 QRSS Long Caves List 07/19
163 Sistema Box Pec Yo'ok Mexico Quintana Roo Tulum 0.936 1506 76 23.2 QRSS Long Caves List 07/19
164 Sistema Four Twenty Mexico Quintana Roo Tulum 0.905 1457 47 14.3 QRSS Long Caves List 07/19
165 Sistema Burning Wasp Mexico Quintana Roo Tulum 0.882 1419 59 18.0 QRSS Long Caves List 07/19
166 Sistema X'tabay Mexico Quintana Roo Tulum 0.867 1395 45 13.7 QRSS Long Caves List 07/19
167 Sistema String of Pearls Mexico Quintana Roo Tulum 0.833 1341 64 19.5 QRSS Long Caves List 07/19
168 Jacop's Well U.S.A. Texas Hays 0.822 1323 137 41.8 Gregg Tatum for JWEP email 10/16
169 Cenote Ts'unu un Mexico Quintana Roo Tulum 0.819 1318 15 4.6 QRSS Long Caves List 07/19
170 Sistema Sueno Mexico Quintana Roo Tulum 0.815 1312 25 7.6 QRSS Long Caves List 07/19
171 Sistema X-pu Ha Mexico Quintana Roo Tulum 0.803 1292 32 9.8 QRSS Long Caves List 07/19
172 Sistema Taninah East Mexico Quintana Roo Tulum 0.779 1254 15 4.6 QRSS Long Caves List 07/19
173 Cenote Mordor Mexico Quintana Roo Tulum 0.776 1249 36 11.0 QRSS Long Caves List 07/19
174 Cenote Gypsy Juice Mexico Quintana Roo Tulum 0.775 1247 66 20.1 QRSS Long Caves List 07/19
175 Sistema Valet Mexico Quintana Roo Tulum 0.774 1246 28 8.5 QRSS Long Caves List 07/19
176 Sistema El Punto (Paradise) Mexico Quintana Roo Tulum 0.756 1216 29 8.8 QRSS Long Caves List 07/19
177 Sistema Akab Ha (SLSH) Mexico Quintana Roo Tulum 0.751 1208 34 10.4 QRSS Long Caves List 07/19
178 Sistema Ursus Mexico Quintana Roo Tulum 0.717 1153 92 28.0 QRSS Long Caves List 07/19
179 Sistema Tam Chac Ha Mexico Quintana Roo Tulum 0.710 1143 75 22.9 QRSS Long Caves List 07/19
180 Sistema Manak Balam Mexico Quintana Roo Tulum 0.698 1123 48 14.6 QRSS Long Caves List 07/19
181 Sistema Cubere Mexico Quintana Roo Tulum 0.694 1117 25 7.6 QRSS Long Caves List 07/19
182 Cenote Don Lucio Mexico Quintana Roo Tulum 0.683 1100 27 8.2 QRSS Long Caves List 07/19
183 Sistema Dzonot Tucha Mexico Quintana Roo Tulum 0.680 1094 41 12.5 QRSS Long Caves List 07/19
184 Sistema Mol Balaam West Mexico Quintana Roo Tulum 0.671 1079 38 11.6 QRSS Long Caves List 07/19
185 Sistema Red Dragon Mexico Quintana Roo Tulum 0.665 1070 26 7.9 QRSS Long Caves List 07/19
186 Sistema Nauatilostotl Mexico Quintana Roo Tulum 0.652 1049 52 15.8 QRSS Long Caves List 07/19
187 Sistema Alimi Mexico Quintana Roo Tulum 0.649 1045 41 12.5 QRSS Long Caves List 07/19
188 Cenote Lilo Ha Mexico Quintana Roo Tulum 0.645 1039 83 25.3 QRSS Long Caves List 07/19
189 Cenote Jeel Kaa Paja Nohc Mexico Quintana Roo Tulum 0.640 1030 41 12.5 QRSS Long Caves List 07/19
190 Sistema Under the Bridge Mexico Quintana Roo Tulum 0.637 1025 33 10.1 QRSS Long Caves List 07/19
191 Cenote Sac Xiquin Che Mexico Quintana Roo Tulum 0.631 1016 59 18.0 QRSS Long Caves List 07/19
192 Sistema Mayan Door Mexico Quintana Roo Tulum 0.626 1008 66 20.1 QRSS Long Caves List 07/19
x Murley's Branch Spring U.S.A. Maryland Allegany 0.232 373 191 58.2 Donnie Cams e-mail 11/18
x Goodenough Spring   U.S.A. Texas Val Verde 0.111 179 377 114.9 Texas Speleological Survey via Jerry Atkinson e-mail 01/16