REEF uses a hierarchical 8-digit code system for survey site locations. Each geographic area has its own set of codes. When completing a survey, you need to know the complete 8-digit code for the site you surveyed.

If the site that you surveyed is not currently on our list, then please email zonecode@REEF.org to request a new code to be assigned. Please provide the site name, general location, and ideally the latitude and longitude.

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Region: TWA
Zone: Mexican Caribbean

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ZoneZone Code listGeographic ReportNameHave Coordinates?
5401Zone Code listGeographic ReportCabo Catoche to Puerto Morelos (inc. Isla Contoy, Mujeres)
54010001Geographic ReportUltrafreezeYes
54010002Geographic ReportCave of the Sleeping SharksYes
54010003Geographic ReportCuevonesYes
54010004Geographic ReportEl TunelNo
54010005Geographic ReportCachetesNo
54010006Geographic ReportTulumNo
54010007Geographic ReportPunta NorteNo
54010008Geographic ReportMedia LunaNo
54010009Geographic ReportManchonesYes
54010010Geographic ReportPunta SurYes
54010011Geographic ReportEl GarrafonNo
54010013Geographic ReportIxlache Grande / Isla Che Reef, near Contoy IslandYes
54010014Geographic ReportPatarera Central, Contoy IslandYes
54010015Geographic ReportPlaya Norte, Contoy IslandYes
54010016Geographic ReportBoca Puerto Viejo Sotavento, Contoy IslYes
54010017Geographic ReportZona de Redes Sotavento, Contoy IslYes
54010018Geographic ReportSanto Remedio (Cancun)No
54010019Geographic ReportPunta Negra (Cancun)Yes
54010020Geographic ReportCancun Mecoloco ReefNo
54010021Geographic ReportPunta Nizuc ReefNo
54010022Geographic ReportAtlantis Reef (adjacent site to Manchones 54010009Yes
54010023Geographic ReportC-58 Wreck (Cancun)Yes
54010024Geographic ReportPiedra Atravezada, Isla MujeresYes
54010025Geographic ReportBridges and Caves, Isla MujeresYes
54010026Geographic ReportWhale Shark Site at Isla de MujeresYes
54010027Geographic ReportBandera ReefYes
54010028Geographic ReportNo Name Reef in CancunYes
54010029Geographic ReportMuseo / Museum - Isla MujeresYes
54010030Geographic ReportAvalon Hotel Area - Isla MujeresYes
54010031Geographic ReportLost Dive SiteYes
54010032Geographic ReportPailusYes
54010033Geographic ReportCross of the BayYes
54010034Geographic ReportSan ToribioYes
54010035Geographic ReportManchones 2Yes
54010036Geographic ReportWhale Shark site 16 miles NNE of Isla ContoyYes
54010037Geographic ReportGrampin ReefYes
54010038Geographic ReportAristosYes
54010039Geographic ReportGarrafon de Castilla Hotel beach (Isla Mujeres)Yes
54010040Geographic ReportLa Herradura (The Horseshoe)Yes
54010041Geographic ReportChitalesYes
54010042Geographic ReportRodmanYes
54010043Geographic ReportRadio PirataYes
54010044Geographic ReportNurseries Oceanus (Puerto Morelos)No
54010045Geographic ReportChairel - Sunken Car FerryYes
54010046Geographic ReportHondurenoYes
54010047Geographic ReportLa Cadenita / The Little ChainYes
54010048Geographic ReportCuevas de AfueraYes
54010049Geographic ReportLos PicosYes
54010050Geographic ReportC-55 WreckYes
54010051Geographic ReportEl Pez Vela Encuentro (Sailfish Encounter) Yes
54010052Geographic ReportRockmanYes
54010053Geographic ReportCueva de TiburonYes
54010054Geographic ReportJardines 3Yes
54010055Geographic ReportLa ParedYes
54010056Geographic ReportFishmarketYes
54010057Geographic ReportEl PuenteYes
54010058Geographic ReportPuerto Morelos ReefYes
54010059Geographic Report12 Miles East of Isla ContoyYes
54010060Geographic ReportKin HaYes
54010061Geographic ReportCapitan DulcheYes
54010062Geographic ReportOjo de Agua (Puerto Morelos)Yes
5402Zone Code listGeographic ReportIsla Cozumel
54020001Geographic ReportTormentosYes
54020002Geographic ReportPalancar CavesYes
54020003Geographic ReportSan Francisco WallYes
54020004Geographic ReportEl Islote ReefYes
54020005Geographic ReportMaracaibo DeepYes
54020006Geographic ReportPunta Sur (Deep)Yes
54020007Geographic ReportColombia Deep / Colombia Wall / Colombia PinnaclesYes
54020008Geographic ReportPalancar HorseshoeYes
54020009Geographic ReportPalancar Shallows and GardensYes
54020010Geographic ReportPaseo del Cedral / Cedar PassYes
54020011Geographic ReportSanta Rosa WallYes
54020012Geographic ReportPunta Tunich Drop-OffYes
54020013Geographic ReportYucab ReefYes
54020014Geographic ReportChankanaab Park (shore dive)Yes
54020016Geographic ReportLa Ceiba ReefYes
54020017Geographic ReportBarracuda Deep/WallYes
54020018Geographic ReportSan JuanNo
54020019Geographic ReportMaracaibo ShallowsYes
54020020Geographic ReportParaiso (Paradise) Reef South (south of cruise ships)Yes
54020021Geographic ReportNo longer there - Paraiso (Paradise) Reef N.(N. of cruise ships)Yes
54020022Geographic ReportVillablanca Wall / ReefYes
54020023Geographic ReportGalapago Drop-OffNo
54020024Geographic ReportLa Panga WreckYes
54020027Geographic ReportColombia ShallowsYes
54020028Geographic ReportCozumel Palace Hotel (was Plaza Las Glorias)Yes
54020029Geographic ReportCaracolilloNo
54020030Geographic ReportTunich ShallowsYes
54020031Geographic ReportCedral WallYes
54020032Geographic ReportLas PalmasYes
54020033Geographic ReportDelila (deep)Yes
54020034Geographic ReportPalancar BricksYes
54020035Geographic ReportFrench Reef (La Francesca)Yes
54020036Geographic ReportSanta Rosa ShallowsYes
54020037Geographic ReportCardona ReefYes
54020038Geographic ReportChankanaab ReefYes
54020039Geographic ReportInternational PierNo
54020040Geographic ReportAllegro ResortNo
54020041Geographic ReportPuerto Abrigo Seawall / Abrigo Reef / Villa Aldora WallYes
54020042Geographic ReportSan ClementeYes
54020043Geographic ReportDzul-HaYes
54020044Geographic ReportVillablanca Shallows / Turquoise Beach Bar / Sculpture / Coral GardenYes
54020045Geographic ReportChankanaab BolonesYes
54020046Geographic ReportEl CieloYes
54020047Geographic ReportC-53 Felipe Xicotencatl ShipwreckYes
54020048Geographic ReportHotel BarracudaYes
54020049Geographic ReportBuccanos/Club Cozumel CaribeYes
54020050Geographic ReportIxchel's GardenYes
54020051Geographic ReportPunta Sur ShallowsYes
54020052Geographic ReportPlaya Corona NorthYes
54020053Geographic ReportCosta Club (Hotel Cozumel shore dive)Yes
54020054Geographic ReportAqua Safari CentroYes
54020055Geographic ReportCasa del Mar (shore dive)Yes
54020056Geographic ReportEagle Ray Pass/CantarellYes
54020058Geographic ReportBarracuda ShallowsNo
54020059Geographic ReportYucab WallYes
54020060Geographic ReportSan Juan ShallowsNo
54020061Geographic ReportFiesta Americana Hotel (shore dive)No
54020062Geographic ReportPlaya Corona South (shore dive / snorkel south of dock)No
54020063Geographic ReportPunta Morena (shore dive)No
54020064Geographic ReportChen Rio (shore dive)No
54020065Geographic ReportLas AtolonesYes
54020066Geographic ReportParadise Shallows (shore dive)Yes
54020067Geographic ReportCasa Gordon/La ViuditaNo
54020068Geographic ReportFaja de MontecristoYes
54020069Geographic ReportCaletta ReefYes
54020070Geographic ReportLittle Barracuda Arrecifitos ReefNo
54020071Geographic ReportNachi CocomYes
54020072Geographic ReportSol Cabanas North Hotel ZoneNo
54020073Geographic ReportPalancar Pier - Muelle de PalancarYes
54020074Geographic ReportSecret ReefNo
54020075Geographic ReportColombia Reef (AGGRA Sam Sitio de Monitoreo)Yes
54020076Geographic ReportPuerta Maya PierNo
54020077Geographic ReportCoral Princess Shore DiveYes
54020078Geographic ReportCondumelNo
54020079Geographic ReportPico's IglooNo
54020080Geographic ReportFishy CondosNo
54020081Geographic ReportChankana'ab WallYes
54020082Geographic ReportDelila WallNo
54020083Geographic ReportCentro Wrecks / Contrel Shallows / Patzcuaro Laguna de Mandinga (off Hemingway Bar)Yes
54020084Geographic ReportEl Cozumeleno Beach ResortYes
54020085Geographic ReportVillablanca HotelNo
54020086Geographic ReportSacramentoNo
54020087Geographic ReportDelila (shallow)Yes
54020088Geographic ReportBlue Angel Resort (shore dive)Yes
54020089Geographic ReportOccidental Grand Hotel BeachYes
54020090Geographic ReportMr. Sanchos Beach Club reefYes
54020091Geographic Report6 Lionfish ReefYes
54020092Geographic ReportIslitas ReefYes
54020093Geographic ReportPunta Sur Park (snorkel)Yes
54020094Geographic ReportScuba Club Cozumel shore diveYes
54020095Geographic ReportPuesta del Sol CondosYes
54020096Geographic ReportPlaya MiaYes
54020097Geographic ReportPlaya Corona / Corona Beach ClubYes
54020098Geographic ReportJurassic ParkNo
54020099Geographic ReportPalancar DeepYes
54020100Geographic ReportBuccanos Beach ClubYes
54020101Geographic ReportMoney Bar Beach ClubYes
54020102Geographic ReportPlaya Azul / Westin CozumelYes
54020103Geographic ReportTequila Beach ClubYes
54020104Geographic ReportCoral Farm (Cozumel CRRP)Yes
54020105Geographic ReportLittle FrancescaYes
54020106Geographic ReportUse 54020041 (duplicate)No
54020107Geographic ReportQuinta Maya (north of Playa Casitas)Yes
54020108Geographic ReportPlaya CaletitasYes
54020109Geographic ReportColumbia CordilleroNo
54020110Geographic ReportTikila BarYes
54020111Geographic ReportEl Mirador (El Cedral)Yes
54020112Geographic ReportDevil's Throat (La Garganta del Diablo)No
54020113Geographic ReportCathedral (near Devil's Throat)No
54020114Geographic ReportCasa del PresidenteYes
54020116Geographic ReportMontanas de CedralYes
54020118Geographic ReportXela Coral Restoration ProjectYes
54020119Geographic ReportIberostar Resort / Greta's SnorkelYes
54020120Geographic ReportAlbertosNo
54020121Geographic ReportHotel B (Cozumel)Yes
54020122Geographic ReportIntercontinental Hotel Beach (Cozumel)Yes
54020123Geographic ReportSunset Beach Reef Restoration SiteYes
54020124Geographic ReportSanta MariaYes
54020125Geographic ReportSkyreef Beach ClubYes
5403Zone Code listGeographic ReportPuerto Morelos (south of marina to 20 degrees - inc. Playa del Carmen)
54030001Geographic ReportThe BalconiesNo
54030002Geographic ReportPaamulNo
54030003Geographic ReportPonderosa CenoteNo
54030004Geographic ReportParadise DeepYes
54030005Geographic ReportMike's MazeNo
54030006Geographic ReportCEDAM CavesNo
54030007Geographic ReportNohoch Nah (Punta Norte)No
54030008Geographic ReportChich CaveNo
54030009Geographic ReportTemple of Doom CenoteNo
54030010Geographic ReportPunta Sur (Carwash Cenote)Yes
54030011Geographic ReportDona Leticia Reef (Akumal)Yes
54030012Geographic ReportSian Ka'an Biosphere ReserveYes
54030013Geographic ReportLaguna Yal-ku (Akumal)Yes
54030014Geographic ReportLa Boya - Las RedesYes
54030015Geographic ReportEl Jardin / Jardinas ReefYes
54030016Geographic ReportLobster Reef (Akumal)No
54030017Geographic ReportTriggerfish Reef (Akumal)No
54030018Geographic ReportPunta Azul ReefNo
54030019Geographic ReportMedia Luna 2 (Half Moon Bay)Yes
54030020Geographic ReportTzimin Ha (Seahorse Reef)Yes
54030021Geographic ReportChemuyilNo
54030022Geographic ReportProfundo ReefNo
54030023Geographic ReportDeep Blue ReefNo
54030024Geographic ReportDick's ReefYes
54030025Geographic ReportX-AK ReefNo
54030026Geographic ReportAK ReefNo
54030027Geographic ReportAquarius Reef (Akumal)No
54030028Geographic ReportNo Name ReefNo
54030029Geographic ReportQuebradaNo
54030030Geographic ReportCanyonNo
54030031Geographic ReportVilla de Rosa (Akumal)No
54030032Geographic ReportHawkfishNo
54030033Geographic ReportGreen WallNo
54030034Geographic ReportPez VelaNo
54030035Geographic ReportLas IslasYes
54030036Geographic ReportLas IglesisasNo
54030037Geographic ReportMotorcycle Reef (Morgan's Reef)Yes
54030038Geographic ReportThe Nets / Las Redas (Akumal Bay)Yes
54030039Geographic ReportSouth AkumalNo
54030040Geographic ReportLas Tortugas/Esfuerzo (Xcaret)Yes
54030041Geographic ReportPunta VenadoYes
54030042Geographic ReportCuevas de XcaretYes
54030043Geographic ReportCaleta de Xcaret/Xcaret CoveYes
54030044Geographic ReportCoco BeachYes
54030045Geographic ReportCozumel Power Cable at Playa del CarmenYes
54030046Geographic ReportMama Vina Wreck (Barco Hunddo)Yes
54030047Geographic ReportBarracuda ReefNo
54030048Geographic ReportXel-Ha LagoonNo
54030049Geographic ReportSouth Paradise - Akumal - Quintana RooYes
54030050Geographic ReportAkumal Bay (Bahia de Akumal)Yes
54030051Geographic ReportYal-Ku Reef 1 (Akumal)Yes
54030052Geographic ReportPunta Sur ShallowsYes
54030053Geographic ReportLobster Condos 1 (Akumal)Yes
54030054Geographic ReportYal-ku REEF 2 (Akumal)Yes
54030055Geographic ReportLobster condos 2 (Akumal)Yes
54030056Geographic ReportMedia Luna 1 (Half Moon)Yes
54030057Geographic ReportSchool (Escuela)Yes
54030058Geographic ReportLa TortugaYes
54030059Geographic ReportGrouper CanyonsYes
54030060Geographic ReportYal-ku CuevasYes
54030061Geographic ReportYal-ku NorteYes
54030062Geographic ReportPunta Sur BajoYes
54030063Geographic ReportRajada (Akumal)Yes
54030064Geographic ReportEsponjas (Sponges) / Sponge Reef (Akumal)Yes
54030065Geographic ReportLa Playa (Quintana Roo)Yes
54030066Geographic ReportVenta (Akumal)No
54030067Geographic ReportPuerto Aventuras CastilloNo
54030068Geographic ReportSantos - Puerto Aventuras, N of CastilloYes
54030069Geographic ReportCedam Caves (W of Paradise Deep)Yes
54030070Geographic ReportRRA 1010 (Akumal Monitor Site)No
54030071Geographic ReportRRA 1012 (Akumal Monitoring Site)No
54030072Geographic ReportRRA 1014 (Akumal Monitoring Site)No
54030073Geographic ReportRRA 1045 (Akumal Monitoring Site)No
54030074Geographic ReportRRA 1121 (Akumal Monitoring Site)No
54030075Geographic ReportRRA 1125 (Akumal Monitoring Site)No
54030076Geographic ReportFin del MundoYes
54030077Geographic ReportRancho Pedro PailaYes
54030078Geographic ReportGrand Bahia HotelYes
54030079Geographic ReportHalfmoon BayYes
54030100Geographic ReportBahia Principe Resort Area Protectado (Playa VentuNo
54030101Geographic ReportBahia Principe Elkhorn Patch (Directly across froNo
54030102Geographic ReportBahia Principe Resort Beach (inshore outside proteNo
54030103Geographic ReportAkumal (Dive Site Name for Bahia Principe Resorts)No
54030104Geographic ReportParadise Isles (Bahia Divers)No
54030105Geographic ReportNorth Paradise Reef (Bahia Divers)No
54030106Geographic ReportSouth Paradise Reef (Bahia Divers)No
54030107Geographic ReportCasa Cenote Manatee River Mangroves (Akumal, BahiaNo
54030108Geographic ReportTres Rios (Three Rivers)No
54030109Geographic ReportCerebrosYes
54030110Geographic ReportGreen Wall / Pared VerdeYes
54030111Geographic ReportMoc-CheYes
54030112Geographic ReportTarpon Reef / Arrecife Sabalos / Sabalos ReefYes
54030113Geographic ReportPunta MaromaYes
54030114Geographic ReportTortugasYes
54030115Geographic ReportCabezosYes
54030116Geographic ReportManchonesYes
54030117Geographic ReportProfunda Moc-Che / Moc-Che DeepYes
54030118Geographic ReportChunzumblulYes
54030119Geographic ReportXpu-HaYes
54030120Geographic ReportCastillo BajoYes
54030121Geographic ReportCastillo MedianoYes
54030122Geographic ReportChan Yum YumYes
54030123Geographic ReportChan Yum Yum DeepYes
54030124Geographic ReportPedregal / PedrigalYes
54030125Geographic ReportWhite House, PaamulYes
54030126Geographic ReportLas Islas Deep / IslandsYes
54030127Geographic ReportParadiseYes
54030128Geographic ReportCanyonlandsYes
54030129Geographic ReportYal Ku Reef 3Yes
54030130Geographic ReportArchesNo
54030131Geographic ReportPrincessYes
54030132Geographic ReportKevin's ReefYes
54030133Geographic ReportPlaya Santa Fe (Tulum) Shore to Reef EdgeYes
54030134Geographic ReportBarcelo Maya Caribe BeachYes
54030135Geographic ReportEl FrenteYes
54030136Geographic ReportTankah / Las Cuevitas / Little CavesYes
5404Zone Code listGeographic ReportBahia de la Ascension
5405Zone Code listGeographic ReportBahia del Espiritu Santo
5406Zone Code listGeographic ReportLower Mainland (Punta Herrero to Belize Border)
54060001Geographic ReportPirates (Piratas)Yes
54060002Geographic ReportPunta AngelYes
54060003Geographic ReportThe Buoy (La Boya)Yes
54060004Geographic ReportHorseshoe (Pta. Herrara)Yes
54060005Geographic ReportSan AntonioYes
54060006Geographic ReportMaya Ha House ReefNo
54060007Geographic ReportEstacion U (Majahual)Yes
54060008Geographic ReportEl BucaneroYes
54060009Geographic ReportKanaima Beach (Majahual)No
54060010Geographic ReportEntrada de Dona Nica - SAM 5/6 - Dona Nica Profundo (Xcalak)Yes
54060011Geographic ReportSanta Julia / SAM 2 (Xcalak)Yes
54060012Geographic ReportPoza Rica / SAM 1 (Xcalak)Yes
54060013Geographic ReportLa Chimenea - SAM 3/4 (Xcalak)Yes
54060014Geographic ReportCosta Maya (south of Cozumel)Yes
54060015Geographic ReportAndy's Reef / Poca Rica (Xcalak)Yes
54060016Geographic ReportPunta Tam / Dos Ojos 2 (Gypsea Divers)Yes
54060017Geographic ReportDos Ojos (near Costa Maya)Yes
54060018Geographic ReportEl Castillo #1Yes
54060019Geographic ReportEl Castillo #2Yes
54060020Geographic ReportLa Casas #1Yes
54060021Geographic ReportLa Casas #2Yes
54060022Geographic ReportZurcosYes
54060023Geographic ReportPunta SolYes
54060024Geographic ReportLa Boya #2Yes
54060025Geographic ReportPasa Diso #2Yes
54060026Geographic Report40 CannonesYes
54060027Geographic ReportJardinesYes
54060028Geographic ReportNew LighthouseYes
54060029Geographic ReportMaya HaYes
54060030Geographic ReportOld LighthouseYes
54060031Geographic ReportHob NaYes
54060032Geographic ReportHob Na BajoYes
54060033Geographic ReportSanta JuliaYes
54060034Geographic ReportSiete CocosYes
54060035Geographic ReportCanonesYes
54060036Geographic ReportAlejandro's ReefYes
54060037Geographic ReportG-SpotYes
54060038Geographic ReportLa PozetaYes
54060039Geographic ReportCoral GardensYes
54060040Geographic ReportPortillasYes
54060041Geographic ReportScots PlaygroundYes
54060042Geographic ReportCosta Maya Cruise Ship Dock beachYes
54060043Geographic ReportEl JardinYes
54060044Geographic ReportEscalonesYes
54060045Geographic ReportLa PozaYes
54060046Geographic ReportLa MonedaYes
54060047Geographic ReportCiudad HundidaYes
54060048Geographic ReportDona NicaYes
54060049Geographic ReportAcuarioYes
54060055Geographic ReportTortugasYes
54060056Geographic ReportPunta Tam South - Gypsea DiversYes
54060057Geographic ReportHotel Caballo BlancoYes
54060058Geographic ReportReef off Dreamtime Dive Center (Mahahual)Yes
54060059Geographic ReportCavernasYes
54060060Geographic ReportMigranaYes
54060061Geographic ReportAlcantarillo / Drain PipeYes
54060062Geographic ReportCasa BlancaYes
5407Zone Code listGeographic ReportChinchorro Banks
54070001Geographic ReportAquario (Central Cay)Yes
54070002Geographic ReportKen 30 (Central Cay)Yes
54070003Geographic ReportParrot (Central Cay)Yes
54070004Geographic ReportPinnacles (North Cay)Yes
54070005Geographic Report40 Cannons / 40 Canones (North Cay)Yes
54070006Geographic ReportWolf Gardens (North Cay)Yes
54070007Geographic ReportSS Far Star (South Cay)Yes
54070008Geographic ReportPt. Lobo / Mike's Folly (South Cay)Yes
54070009Geographic ReportObi (Central Cay)Yes
54070010Geographic ReportPunta Isabel (Central Cay)Yes
54070011Geographic ReportKai Ha (Central Cay)Yes
54070012Geographic ReportManchones (Central Cay)Yes
54070013Geographic ReportBaliza (Central Cay)Yes
54070014Geographic ReportCayo Norte - SAM B2Yes
54070015Geographic ReportLa Caldera (North Cay)Yes
54070016Geographic ReportPunta Irlanda (Chinchorro Banks)Yes
54070017Geographic ReportPunta Gonzalez (Chinchorro Banks)Yes
54070018Geographic ReportLa Reina del SurYes
54070019Geographic ReportTres PalmasYes
54070020Geographic ReportGran Muro / Black CoralYes
54070021Geographic ReportEl SolitarioYes
54070022Geographic ReportGatas / Nurse SharksYes
54070023Geographic ReportJardines / MaricotasYes
54070024Geographic ReportChapulinesYes