Quintana Roo Speleological Survey Reported Long Underwater Caves 22 July 2021 Updates are Welcome: chac (at) consolidated.net Cave Length Length Depth Depth Reported System (ft) (m) (ft) (m) By 1 Sistema Sac Actun 1211342.6 369217.2 -391 -119.2 Davidsson, Gust, VSP Project, 03/2021 2 Sistema Ox Bel Ha 1043439.0 318040.2 -188 -57.3 Wagner, Cseh, 07/2021 3 Sistema K'oox Baal 336891.5 102684.5 -86 -26.2 A, Reato, 07/2021 4 Sistema Xunaan Ha 171305 52213.8 -89 -27.1 Quiet Diver Team, 05/2013 5 Sistema Toh Ha 156647.5 47746.2 -42 -12.8 Berni, Sieff, 12/2018 6 Sistema Zapote-Camilo 127967.6 39004.5 -92 -28.0 Schmittner, Bulman, Coffield-Feith, Marlow, 02/2021 7 Sistema Nohoch Kai 109923.1 33504.6 -85 -25.9 Berni, Sieff, Cope, Schmittner, Gugermeier, 03/2021 8 Sistema Caterpillar 92693.5 28253.0 -95 -29.0 QDT, DRSS, 05/2019 9 Sistema Sand Crack 87751 26746.5 -58 -17.7 Quiet Diver Team, DRSS, 06/2013 10 Sistema Nohoch Pek 83454.8 25437.0 -66.6 -20.3 Rouquette-Cathala, QDT, DRSS, 01/2020 11 Sistema Doggi 53503.4 16307.8 -51 -15.5 Quiet Diver Team, DRSS 03/2019 12 Entrada Caapechen (Manatee) 51305.8 15638.0 -114 -34.7 MCEP, Yaxchen Project, 10/2015 13 Sistema Ponderosa 49900 15209.5 -67 -20.4 Mayor, Pocobelli, 08/2014 14 Sistema Dos Pisos (Ka'p'el Nah)48413 14756.3 -80 -24.4 Berni, Sieff, 11/2019 15 Sistema Murena - Aak Kimin (Yal46813 Ku) 14268.6 -225 -68.6 G. Brown, Quiet Diver Team, 03/2014 16 Sistema Pandora 42292.5 12890.8 -95 -29.0 Gibb, Rouquette-Cathala, Bogaerts, 05/2020 17 Sistema Sac Kai (Paachil Nah) 38857.9 11843.9 -51 -15.5 Czech and Slovak Speleo. Soc., 07/2017 18 Cueva Quebrada 37911 11555.3 -31 -9.4 Neto, Omeroid, 06/2014 19 Entrada Boca Paila 37409.5 11402.4 -88 -26.8 CINDAQ, MCEP, 10/2015 20 Sistema MOAC 37300.9 11369.3 -55 -16.8 GAM, 04/2018 21 Sistema Cupul Ha 36178.5 11027.2 -46 -14.0 Berni, Sieff, 03/2014 22 Sistema El Puente 34363 10473.8 -296 -90.2 Vanilla Sky Project, 03/2015 23 Sistema Muul 3 32982 10052.9 -63 -19.2 Phillips, O'Farrell, 04/2016 24 Sistema Taj Mahal 32658 9954.2 -78 -23.8 M. Nebenhaus, 08/2017 25 Sistema Ek Be 32497.5 9905.2 -60 -18.3 Quiet Diver Team, 03/2014 26 Cenote Chan Ayim 30781.5 9382.2 -97 -29.6 Allende, Berni, Labarthe, Privett, Sieff, 06/2020 27 Sistema Chac-Mol 30160 9192.8 -93 -28.3 Matthes, Formstone, 11/ 2011 28 Sistema Dzonot Took 29054 8855.7 -59 -18.0 Vanilla Sky Project, 04/2016 29 Sistema Veladora 28972 8830.7 -62 -18.9 Czech and Slovak Speleo. Soc., 01/2020 30 Sistema Minotauro 28673 8739.5 -55 -16.8 A. Reato, 08/2013 31 Sistema Ah Kax Ha (Otra Avicola)23283.1 7096.7 -89 -27.1 Gibb, Rouquette-Cathala, Knudsen, 02/2021 32 Sistema Sac Pepem 23244.2 7084.8 -48 -14.6 Gibb, Rouquette-Cathala, Nebenhaus, 07/2018 33 Sistema Kachkalak 22480.1 6851.9 -52 -15.8 Schaad, Martin, Tanaka, Miho, 02/2021 34 Sistema Xel-Ha Norte 21825 6652.3 -44 -13.4 Bogaerts, Phillips 09/2004 35 Sistema Ni Ha 20738 6320.9 -92 -28.0 Berni, Sieff, Cope, Larsen, Privett, 04/2020 36 Sistema Lost and Found 20468.5 6238.8 -71 -21.6 Schmittner, Schnittger, Phillips, 02/2021 37 Sistema Tortuga 20292 6185.0 -90 -27.4 Marlow, Hoogma, S. and E.,12/2019 38 Cueva Aerolito 20014 6100.3 -90 -27.4 S. Ormeroid, 1993 39 Sistema O'ho Tucha 19582.7 5968.8 -82 -25.0 Vanilla Sky Project, GAM, 03/2018 40 Sistema Joolis 19387.5 5909.3 -72 -21.9 Ardizzoni, Czech Speleo. Society, 11/2020 41 Sistema Exploradora Sump 19297.6 5881.9 -57.1 -17.4 Fortin, Fraser, O'Keefe, Schmid, White, 07/2020 42 Sistema de los Metates 18892 5758.3 -77 -23.5 GAM, 04/2018 43 Sistema Vecan 18457.7 5625.9 -89 -27.1 Rouquette-Cathala, Gibb, Knudsen, 01/2019 44 Sistema Actun Chen 17831 5434.9 -82 -25.0 Birnbach, LeMaillot, 01/2001 45 Sistema Actun Koh 16917 5156.3 -54 -16.5 F.Devos, 01/2001 46 Sistema Chi Keen 16377 4991.7 -57 -17.4 Quiet Diver Team, 06/2013 47 Sistema Crustacea 16008 4879.2 -84 -25.6 A. Reato, 07/2012 48 Sistema Tumben Kuxtal 15247 4647.3 -67 -20.4 Hardin, Lowe, C., J. Richards, 06/2016 49 Cenote Kan Ha 15032 4581.8 -92 -28.0 Berni, Privett, de la Puerta, Pye, Sieff, 04/2015 50 Sistema Ramon 14864.2 4530.6 -104 -31.7 Hietanen, Schmittner, Schnittger, 02/2021 51 Sistema Chac Bromelia 14670 4471.4 -58 -17.7 Martin, Schmittner, 02/2021 52 Sistema Manak Balam 14470 4410.5 -64 -19.5Gibb, Rouquette-Cathala, White, Nebenhaus, 03/2021 53 Sist. Tatich (Nuhuch Actun, Christian)14463 4408.3 -29 -8.8 CSS,SSS, Gibb, Rouquette-Cathala, 01/2020 54 Cenote Santa Maria (San Pedro)14299.3 4358.4 -86 -26.2Bulman, Widman, De La Puerta, Coffield-Feith, 08/2020 55 Sistema Mosquito Factory 14093.5 4295.7 -34 -10.4 Quiet Diver Team, 03/2014 56 Sistema Yax Tun 13398 4083.7 -59 -18.0 Martin, O'Farrell, Schmittner, Lauer, Josiak, 02/2021 57 Sistema Xuux Two 13274 4045.9 -66 -20.1 Leal, Reato, 05/2019 58 Sistema Red Pool 13063 3981.6 -52 -15.8 GAM, 04/2018 59 Sistema Burrodromo 13000 3962.4 -47 -14.3 W. Skiles, 09/1988 60 Sistema Luna Azul 11548 3519.8 -74 -22.6 Pytel, Clark, 06/2018 61 Sistema Dos Pies 11536 3516.2 -43 -13.1 F.Devos, 01/2001 62 Sistema Choko Pek 11379.1 3468.3 -50 -15.2 H. and M. Spangler, Schmittner, 02/2021 63 Sistema Sak' Sak' 11150 3398.5 -51 -15.5 Gibb, Knudsen, Rouquette-Cathala, 03/2015 64 Sistema Alomo-Colmena 10856 3308.9 -32 -9.8 Johanson, Spangberg, 03/2015 65 Sistema Carwash 10604 3232.1 -87 -26.5 B. Phillips, 09/2016 66 Cenote Don Lucio 10224.2 3116.3 -68.4 -20.8 QDT, Bosma, Gruber, 11/2019 67 Sistema Elementos 9816 2991.9 -67 -20.4 Vanilla Sky Project, 03/2019 68 Sistema El Zapotal 9684 2951.7 -71 -21.6 Vanilla Sky Project, 03/2019 69 Sistema Miguel 9293 2832.5 -60 -18.3 R. Schmittner, 05/2008 70 Cenote Subul 9261 2822.8 -49 -14.9 Phillips, Schmittner, 10/2012 71 Sistema Flor de Mayo 9114 2777.9 -66 -20.1 O'Farrell, Schmittner, 09/2018 72 Cenote Crocodrilo 8180 2493.3 -57 -17.4 G. Mendoza, 10/2005 73 Sistema Gypsy Juice 8156 2485.9 -85 -25.9 Hietanen, Spangberg, 01/2020 74 Sistema Zebra 8014 2442.7 -58 -17.7 Czech and Slovak Speleo. Soc., 04/2014 75 Sistema Casa del Jaguar 7937 2419.2 -29 -8.8 Quiet Diver Team, 12/2012 76 Cenote Pepem Actun 7337 2236.3 -89 -27.1 A. Reato, 07/2012 77 Cenote Chi chan K'uk'um 7324 2232.4 -50 -15.2 R. Schmittner, 09/2008 78 Cenote Sole (Sunscape) 7294 2223.2 -33 -10.1 Bogaerts, Schmittner, 02/2005 79 Cenote Rudy Sanchez 7233 2204.6 -61 -18.6 Bogaerts, Meacham, 06/2003 80 Sistema Chakalal 7118 2169.6 -22 -6.7 B. Birnbach, 09/2003 81 Sistema Carrillo 7034 2144.0 -26 -7.9 F. Devos, 01/2001 82 Sistema Muuch 6981 2127.8 -18 -5.5 Gibb, Knudsen, Rouquette-Cathala, 07/2014 83 Sistema Zukunoob Noh 6794 2070.8 -53 -16.2 Reato, Garcia, 07/2017 84 Sistema Gran Zapote 6745 2055.9 -38 -11.6 Reato, Leal, 07/2017 85 Sistema Swan Lake 6635.8 2022.6 -49 -14.9 Berni, Pye, Sieff, 11/2016 86 Laguna Nonec 6562 2000.1 -35 -10.7 J. Zumrick, 1992 87 Cenote Hatzutz Actun 6497 1980.3 -77 -23.5 Berni, Pye, Sieff, 02/2018 88 Sistema Yang Kai 6462 1969.6 -69 -21.0 SAET, 03/2006 89 Cenote Tux cud'tang Che 6246 1903.8 -69 -21.0 Franco, Schmittner, 09/2012 90 Sistema Ixchel 6192 1887.3 -67 -20.4 Bertoni, Korytko, 09/2009 91 Sistema Domingos 6113 1863.2 -38 -11.6 T. Spangberg. 12/2013 92 Sistema Chico Spring 6105 1860.8 -59 -18.0 S. Bogaerts, 03/2003 93 Cenote Dagobah 5940 1810.5 -84 -25.6 Gibb, Rouquette-Cathala, Nebenhaus, 10/2018 94 Sistema Tam Chac Ha 5806 1769.7 -75 -22.9 Hietanen, Spangberg, 11/2019 95 Sistema Vanilla 5670 1728.2 -38 -11.6 Vanilla Sky Project, 02/2013 96 Sistema Heder 5623 1713.9 -80 -24.4 F.Devos, 01/2001 97 Sistema Templo 5511 1679.8 -69 -21.0 M. Bordignon, 08/2010 98 Sistema Guerreros Sump 5507.4 1678.7 -21 -6.4 Buess, Pocobelli, Privett. Pye, 11/2015 99 Sistema Las Niñas 5312 1619.1 -40 -12.2 Lodge, Lucht, Schmittner, 11/2014 100 Sistema Uxuxubi 5290 1612.4 -51 -15.5 Alexakos, Dusek, Gobara, Raseta, 05/2015 101 Sistema Umberto 5187 1581.0 -36 -11.0 Phillips, Rouquette-Cathala, 07/2013 102 Sistema Misterio Maya 5076 1547.2 -37 -11.3 A. Reato, 01/2015 103 Sistema Playa de Ranas 5042 1536.8 -56 -17.1 Vanilla Sky Project, 03/2019 104 Sistema Eldorado 5016 1528.9 -54 -16.5 Schmittner, Clark, 02/2021 105 Sistema Box Pek Sac Yo'ok 4940 1505.7 -76 -23.2 Gibb, Rouquette-Cathala, Knudsen, 12/2013 106 Cueva Alamo Sump 4934.8 1504.1 -25 -7.6 Rouquette-Cathala, Nebenhaus, 01 2021 107 Sistema Four Twenty 4780 1456.9 -47 -14.3 Berni, Sieff, 03/2014 108 Sistema Burning Wasp 4656 1419.1 -59 -18.0 Vanilla Sky Project, 03/2019 109 Sistema X'tabay 4575 1394.5 -45 -13.7 B.