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: IORS
Zone: Red Sea

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ZoneZone Code listGeographic ReportNameHave Coordinates?
41Zone Code listGeographic ReportYemen (West Coast and Islands)
42Zone Code listGeographic ReportSaudi Arabia (West Coast)
4201Zone Code listGeographic ReportSaudi Arabia side Gulf of Aqaba
4202Zone Code listGeographic ReportTiran and nearby islands (Saudi Arabia)
42020001Geographic ReportTiran 1Yes
42020002Geographic ReportTiran 2Yes
42020003Geographic ReportTiran 3Yes
42020004Geographic ReportAbo KoroshYes
42020005Geographic ReportEl AshkaYes
43Zone Code listGeographic ReportJordan
44Zone Code listGeographic ReportIsrael
44000001Geographic ReportSatil WreckYes
44000002Geographic ReportPrincess BeachYes
44000003Geographic ReportUnderwater Restaurant HaSela Beach, EilatYes
44000004Geographic ReportThe Sisters (Migdalor Beach)Yes
44000005Geographic ReportEilat Coral Beach Nature ReserveYes
45Zone Code listGeographic ReportEgypt
4501Zone Code listGeographic ReportSinai Peninsula
45010001Geographic ReportSS Thistlegorm WreckYes
45010002Geographic ReportLighthouse (Dahab)Yes
45010003Geographic ReportHouse Reef Right (Big Blue Dahab)Yes
45010004Geographic ReportEel GardenYes
45010005Geographic ReportMashrabaYes
45010006Geographic ReportHouse Reef Left (Big Blue Dahab)Yes
45010007Geographic ReportBannerfish BayYes
45010008Geographic ReportUm Sid (Dahab)Yes
45010009Geographic ReportThe Caves (Dahab)Yes
45010010Geographic ReportEl Bells - Blue HoleYes
45010011Geographic ReportBlue Hole Right SideYes
45010012Geographic ReportCanyon GardensYes
45010013Geographic ReportThe CanyonYes
45010014Geographic ReportThe IslandsYes
45010015Geographic ReportGolden Blocks to Moray GardenYes
45010016Geographic ReportMoray Garden RightYes
45010017Geographic ReportMoray Garden LeftYes
45010018Geographic ReportGabr el-Bint North (Dahab)Yes
45010019Geographic ReportGabr el-Bint South (Dahab)Yes
45010020Geographic ReportGolden Blocks LeftYes
45010021Geographic ReportSheraton (Sharm El Sheikh)Yes
45010022Geographic ReportKingston WreckYes
45010023Geographic ReportJackfish Alley (Ras Mohammed National Park)Yes
45010024Geographic ReportJackson Reef (off Tiran Island)Yes
45010025Geographic ReportGordon Reef (off Tiran Island)Yes
45010026Geographic ReportThomas Reef (off Tiran Island)Yes
45010027Geographic ReportShark and Yolanda ReefYes
45010029Geographic ReportDunraven Wreck (Sha'ab Mahmodat)Yes
45010030Geographic ReportSha'ab Ali / Shaab AliYes
45010031Geographic ReportShag RockYes
45010032Geographic ReportThe Alternatives (Sha'abel-Utat)Yes
45010033Geographic ReportAnemone CityYes
45010034Geographic ReportRas Fanar Lighthouse (Mangrove Island - Ras Mohammed)Yes
45010035Geographic ReportFayroza Beach (Nuwaibaa)Yes
45010036Geographic ReportDuna Corals (Nuwaibaa)Yes
45010037Geographic ReportTarabin (Nuwaibaa)Yes
45010038Geographic ReportSinai Beach (Nuwaibaa)Yes
45010039Geographic ReportBanana Beach (Nuwaibaa)Yes
45010040Geographic ReportBotcha (Nuwaibaa)Yes
45010041Geographic ReportKum Kum (Nuwaibaa)Yes
45010042Geographic ReportSalah El Din Castle (Pharoahs Island)Yes
45010043Geographic ReportFiran Valley (Fjord Bay)Yes
45010044Geographic ReportSolar LakeYes
45010045Geographic ReportTaba HeightsYes
45010046Geographic ReportOrascom BeachYes
45010047Geographic ReportTaba 1Yes
45010048Geographic ReportThree PoolsYes
4502Zone Code listGeographic ReportSuez to Hurghada
45020001Geographic ReportRosalie Moller WreckYes
45020002Geographic ReportSha'ab Reef (Abu Nuhas)Yes
45020003Geographic ReportWreck of the Tiles / Chrisoula K Wreck / Marcus Wreck - Abu NuhasYes
45020004Geographic ReportDolphin House / Sha'ab El Erg (10 miles NE of Hurghada)Yes
45020005Geographic ReportEl Fanous / Lighthouse / Torfa Fanous EastYes
45020006Geographic ReportEl Mina WreckYes
45020007Geographic ReportSmall Giftun Island South / Divers AlleyYes
45020008Geographic ReportAbu Hashish SudYes
45020009Geographic ReportSud Abu Ramada / South Abu Ramada / Carlsons CornerYes
45020010Geographic ReportTurft el Shahed (Small Giftun Island)No
45020011Geographic ReportBalena WreckYes
45020012Geographic ReportSea Star Beau Rivage HotelYes
45020013Geographic ReportShabh Abou GalawaYes
45020014Geographic ReportAbu GalawaYes
45020015Geographic ReportFanadier NorthYes
45020016Geographic ReportGota Abu RamadaYes
45020017Geographic ReportGhiannis D. Wreck (Abu Nuhas)Yes
45020018Geographic ReportGubal Barge (Gubal Island)Yes
45020019Geographic ReportBluff Point (Small Gubal Island)Yes
45020020Geographic ReportSmall Giftun Island Police StationYes
45020021Geographic ReportUmm Gammar (Mother of the Moon)Yes
45020022Geographic ReportShaab IrisYes
45020023Geographic ReportFanadier SouthYes
45020024Geographic ReportEl Fanous WestYes
45020025Geographic ReportMarriott Beach Resort SnorkelYes
45020026Geographic ReportPoseidon's Garden (Shaab el Erg)Yes
45020027Geographic ReportUlysses WreckYes
45020028Geographic ReportGezira Syul KebirYes
45020029Geographic ReportLagoon on Abu NuhasYes
45020030Geographic ReportWreck of the Carnatic / Carnatik (Abu Nuhas)Yes
45020031Geographic ReportEl MalikYes
45020032Geographic ReportRas DishaYes
45020033Geographic ReportErg So Maya (Small Giftun)Yes
4503Zone Code listGeographic ReportS. of Hurghada to Quseir
45030001Geographic ReportRas Abu SomaYes
45030002Geographic ReportPanorama ReefYes
45030003Geographic ReportSalem Express WreckYes
45030004Geographic ReportAbu Soma GardenYes
45030005Geographic ReportTobia ArbaYes
450301Zone Code listGeographic ReportBig and Little Brother Islands
45030101Geographic ReportLittle Brother IslandYes
45030102Geographic ReportSW Wall Little Brother IslandYes
45030103Geographic ReportBig Brother IslandNo
45030104Geographic ReportWest Wall of Big Brother IslandYes
45030105Geographic ReportSouth End of Big Brother IslandYes
45030106Geographic ReportNumidia Wreck (Big Brother Island)Yes
45030107Geographic ReportEast Wall of Big Brother IslandYes
4504Zone Code listGeographic ReportS. of Quseir to Sudan Border
45040001Geographic ReportMarsa Shona / Marsa Shouna / Shoab El ShounaYes
45040002Geographic ReportElphinstone ReefYes
45040003Geographic ReportSha'ab SharmYes
45040004Geographic ReportGota SheleniatYes
45040005Geographic ReportMarsa Abou Dabbab NorthYes
45040006Geographic ReportMarsa Abou Dabbab SouthYes
45040007Geographic ReportSharm Abou DabbabYes
45040008Geographic ReportMarsa Hermez NorthYes
45040009Geographic ReportMarsa Shagra NorthYes
45040010Geographic ReportMarsa Shagra SouthYes
45040011Geographic ReportMarsa Gabal El RosasYes
45040012Geographic ReportGorgonia BeachYes
45040013Geographic ReportHankorabYes
45040014Geographic ReportSiyal IslandYes
45040015Geographic ReportUm El Sheikh IslandYes
45040016Geographic ReportMarsa Mobarak NorthYes
45040017Geographic ReportMarsa Mobarak SouthYes
45040018Geographic ReportAbou Nawas GardenYes
45040019Geographic ReportTorombiYes
45040020Geographic ReportAbu Dabab NorthYes
45040021Geographic ReportAbu Dabab SouthYes
45040022Geographic ReportSha'ab Abu Dabab 4Yes
45040023Geographic ReportMarsa Nakari NorthYes
45040024Geographic ReportMarsa Nakari SouthYes
45040025Geographic ReportWadi El Gemal House ReefYes
45040026Geographic ReportRas BaghdadyYes
45040027Geographic ReportMarsa Umm El AbbasYes
45040028Geographic ReportSha'ab GubarYes
45040029Geographic ReportAlmathufYes
45040030Geographic ReportMarsa Moren NorthYes
45040031Geographic ReportMarsa Moren SouthYes
45040032Geographic ReportAbu Dabab 3Yes
45040033Geographic ReportUmm Halhala NorthYes
45040034Geographic ReportUmm Halhala SouthYes
45040035Geographic ReportDream LagoonYes
45040036Geographic ReportBlue LagoonYes
45040037Geographic ReportEmerald LagoonYes
45040038Geographic ReportMarsa Egla NorthYes
45040039Geographic ReportMarsa Egla SouthYes
45040040Geographic ReportMarsa Asalaya NorthYes
45040041Geographic ReportMarsa Asalaya SouthYes
45040042Geographic ReportMarsa SefenYes
45040043Geographic ReportSha'ab Samadai CaveYes
45040044Geographic ReportSha'ab Samadai South PinnaclesYes
45040045Geographic ReportSha'ab Samadai TorphaYes
45040046Geographic ReportMarsa Shouna SouthYes
45040047Geographic ReportMarsa Shouna NorthYes
45040048Geographic ReportSha'ab Marsa AlamYes
45040049Geographic ReportLagoon ViewYes
450401Zone Code listGeographic ReportDaedalus Reef
45040101Geographic ReportDaedalus Reef (NE tip)Yes
45040102Geographic ReportDaedalus Reef (South end)Yes
45040103Geographic ReportDaedalus Reef (West side)No
45040104Geographic ReportAnemone City (Daedalus NW)No
45040105Geographic ReportDaedalus Reef (SE side)No
450402Zone Code listGeographic ReportFury Shoals and nearby islands
45040201Geographic ReportSha'ab Claudia / Claude / ClaudioYes
45040202Geographic ReportSataya / Dolphin ReefYes
45040203Geographic ReportSha'ab HamamYes
45040204Geographic ReportAbou Galawa SorayaYes
45040205Geographic ReportMalahiYes
45040206Geographic ReportSatayh SouthYes
450403Zone Code listGeographic ReportSt. Johns and nearby islands
45040301Geographic ReportUmm Khararem (St. Johns Cave)Yes
45040302Geographic ReportUmm Eruk (St. Johns)Yes
45040303Geographic ReportParadise (St. Johns)Yes
45040304Geographic ReportGoataa Soraya (St. Johns)Yes
45040305Geographic ReportGoataa Kebir (St. Johns)Yes
45040306Geographic ReportDangerous Reef (St. Johns)Yes
45040307Geographic ReportZabargad IslandYes
45040308Geographic ReportRocky IslandYes
46Zone Code listGeographic ReportSudan
47Zone Code listGeographic ReportEritrea
48Zone Code listGeographic ReportDjibouti