- A Casaïola
- A-frame
- A-frames (Finnart)
- A-ji-bai Wreck 阿吉掰沈船
- A Point
- A World Adrift Underwater Sculpture Park
- Aarah Bodu Thila
- Aarah Dekunu Thila
- Aarah Kuda Thila
- Aarah Wall
- Aare Worblaufen
- Añaza
- Abaandance Faru
- Abades Bay
- Abades Mountain
- Abakas I
- Abalone Cove
- Abana Reef
- Abandoned Sofitel Coral Garden
- Abanico Tortuga Diving
- Abborrkroken
- ABC House Reef
- Abdi Reis
- Ablahamn Kullen
- Abo Almadafee أبو المدافع
- Above & Below Dive Centre @Blue Lagoon
- Abrigo Wall
- Abrolhos Islands
- Abu Dabab Garden
- Abu Dabab I
- Abu Dabab II
- Abu Dabab III
- Abu Dabab IV
- Abu Dabab South
- Abu Dabab V
- Abu Dabab VI
- Abu Dabour
- Abu Galawa Kebir Wreck
- Abu Galawa Small
- Abu Ghusun (Wreck)
- Abu Hamra
- Abu Hashish Lagoon
- Abu Hashish Sud Ergs
- Abu Helal
- Abu Kafan
- Abu Kafan North
- Abu Kafan South
- Abu Nawas Garden
- Abu Nuhas Ghiannis D.
- Abu Ramada North
- Abu Saaf ED
- Abu Saile
- Abu Sawatyr
- Abu Soma Garden
- Abu Tair
- Abu Tair - Shiab Alkabir
- Abu Talha
- Abyss
- Achensee
- Achensee, Hechenberg
- Achensee, Schwarzenau (Campingplatz)
- Achensee, TCI Parcours
- Achilleas
- Achziv Canyon קניון אכזיב
- Acqua Dolce
- Acuari
- Acuario
- Acuario
- Acuario I
- Ad Jatia
- Ada Ciganlija-Smokvica
- Adabanko Reef
- adam faru
- Adan Shita
- Addu Manta Point
- Adelaide (Wreck)
- Admiral 1
- Admiral 2
- Admiral 3
- Admirals Point
- Adolphus Busch (Wreck)
- Advanced Bommie
- AED Studio 12
- Africville Ramp Dive Site
- Agariushi
- Agatti Edge
- Agia Marina Beach
- Agia Triada
- Agincourt Reefs
- Agincourt Ribbon Reefs
- Agios Georgios Pinnacle
- Agios Georgios Wall
- Agios Georgios Wall 2
- Agios Nikolaos
- Agios Petros
- Agios Prokopios Reef
- Agios Savvas
- Agni reef
- Ago Island
- Agua Caliente
- Agua Dolç
- Agua Negra Cozumel
- Aguadilla
- Agujeros azules
- Aguni Fudensaki
- Agus Bay
- Agyll's Reef
- Aheloy Dsd Site
- Ahga Giri
- Ahmedbe Thila
- Ahrax Inland Sea
- Aiona Wreck (حطام أيونا)
- Air Cave
- Air Cavern
- Airplane
- Airplane
- Airplane C-47 Dakota
- Airplane Wreck
- Airplane Wreck
- Airplane Wreck (Santa Martha)
- Airplanes (Wreck)
- Airport Beach
- Airport Beyru
- Airport Caves
- Airport Point
- Airport Reef
- Aiyabe Thila (Hollywood)
- Ajoi
- Ajoy
- Akahae
- Akehama
- Aki no Hama
- Akirifushi Kandu
- Akitsushima
- Akiu Great Falls
- Akrotiri Fish Reserve
- Aksona Bay
- Akumal Bay Marine Park
- Akumal Reef
- Akyar Reef
- Al Fahal Island
- Al Kahfain (Wreck)
- Al Munassir Wreck
- Al Sharouk, Aqaba
- Alagados , P & P Mergulho
- Alaina’s Sandy Bottom
- Alains Cliff
- Alamanda / Alam Anda
- Albatros, wreck
- Alcala Bay or Baja de la Tortuga
- Alcala Reef
- Alcatraz
- Alcyone, Cocos Island
- Aldan
- Aldens Cave - Flinders Reef
- Aldermen Islands
- Alegranza
- Alex Cave
- Alexander Springs
- Alexandria
- Alexandria Wreck
- Alexenau
- alfasma
- Algyő Strandfürdő
- Algyo New Beach
- Algyo Under the Bridge
- Alharrah الحرة
- Žali Potok/Šekoda
- Ali Thila
- Alibaba
- Alice B (Wreck)
- Alice in Wonderland
- Alice in Wonderland
- Alice in Wonderland (45)
- Alice in Wonderland, BVI
- Alidhoo Caves
- Alien Head
- Alien Nation
- ALIGHAA BEYRU EDGE
- ALIGHAA BEYRU FARU
- Alikoe Giri
- Alimas Faru
- Alimatha House Reef
- Aliwal Shoal
- Aliwal Shoal Reef
- All Dive Sits Surrounding Gem & Kapas Island
- Alligator Deep
- Alligator Reef
- Allmannshausen Wintertauchplatz
- Alma Bay
- Almeida Carvalho (Wreck)
- Almendra
- Almond Tree
- Alona Beach House Reef
- Alotmeant - Coral Restoration Project
- Alouette Lake
- Alpenaquarium Grüblsee, Präbichl
- Alsharm Yanbu
- Alssundbroen
- Altafyah Middle Reef
- Altare
- Altenburg, Aquarium
- Alter Aarelauf
- Alternative
- Altes Emser Bad
- Althäuser See
- Aluth Gala
- Alvarenga
- Alviksvraket
- Am Alten Hotel
- Ama Beach
- Amager Strandpark - Havheksen
- Amaras Reef
- Amazing Grace
- Amazon
- Ambrósio
- AMC Amsterdam
- AMC hyperbare kamer
- Amed Ghost Bay
- Amed Wall
- Ameisenecke
- Ameisenegge (Entenecke)
- AMELIE
- American Tanker
- American Wreck
- Ametatu
- Amfiteatre dive
- Amigo House Sand
- Amigos House Reef(sardines)
- Amilda’s Garden
- Amilla Fushi
- Amin Faru
- Amingiri Sandbank Reef
- Amistad National Recreation Area
- Amity Point
- Amiyoko
- Ammelshain Steinbruch
- Ammo Jetty
- Ammoniakhavnen
- Ammunition Barges
- Amok
- Amp Miramare
- Ampera
- Amphion
- Amphiteather/pistol Bay-stage
- Amphitheater
- Amphitheatre
- Amphitheatre
- Amphitheatre Bay
- Amphora Cave
- Amphora Reef, Kreta
- Amphora Wall
- Amphora Wall
- Amphoras
- Amphoras Dive Site
- Amphoren (E3), Cirkewwa, Malta
- Am/Pm Beach
- Amra
- Amslerbecken
- Amtrak
- An another Algyo beach
- Anar Dive Center House Reef
- Anas Reef
- Anau
- Anau - Mantas Spot - Bora Bora
- Anbul
- Anchor
- Anchor Bay
- Anchor Bay Marina
- Anchor Bay-popeye, Il- Mellieha, (Norte)
- Anchor Bay (Popeye Village)
- Anchor Point
- Anchor Point
- Anchor Point
- Anchor Point North
- Anchor Reef
- Anchor Wall
- Anchors Canary
- Ancient Roman Harbour
- Ancient Site Ciovo North
- Ancones
- Ancoras
- Andark Lake
- Andes (Wreck)
- Ando no Hana
- Andrea
- Andrea 1
- Andrea Ferrara Wreck
- Andrea I (23)
- Andrea II (22)
- Andrea (Wreck)
- Anegados
- Anemone Bay North Solitary Island
- Anemone Bommies - Lady Elliot Island
- Anemone City
- Anemone City - Ras Mohammed
- Anemone Garden
- Anemone Garden
- Anemone Reef
- Anemone Thila
- Anenome Gardens
- Aneris
- Anfi Beach
- Anfiteatro
- Anga Faru
- Angaga Thila
- Angel City
- Angel City (44)
- Angel Reef
- Angelfish Blue Hole
- Angelfish Reef
- Angelfish Reef - Grand Cayman
- Angels Cove
- Anglin Pier Ledge
- Angol Point
- Angthong Marine Park
- Anina (Wreck)
- Anita’s Reef
- Ankerplaats
- Ann Ann (Wreck)
- Anna Giri
- Anna Ii Wreck
- Anna Jacoba Polder
- Anna Jacobapolder
- Anna-maria
- Annapolis Ymca Pool
- Anniela Thila
- Ann's Paradise
- Anse 3 airs
- Anse Christophe
- Anse de la Mauresque
- Anse des Tortues
- Anse Dufour
- Anse à La Barque
- Anse Négresse
- Anse Petit Cour
- Anse Thomas
- Ansell Point
- Anthias Divers House Reef
- Anthony Quinn Bay
- Anthony Quinn Seal Cave
- Anthony’s Key Resort House Reef
- Antilla Wreck
- Antique Wreck
- Antonio Gaudi
- Antonio Lorenzo
- Anton's
- Anybody's
- อ่าวบอน : Ao Bon
- อ่าวจาก : Ao Chak
- Ao Khai, Koh Chan อ่าวไข่, เกาะจาน
- Ao Kluai
- Ao Kruad
- อ่าวแม่ยาย : Ao Mae Yai
- Ao Mook
- Ao Nui
- Ao Sane
- Ao Sane Beach
- Ao Sapparot (Pineapple Bay)
- อ่าวสุเทพ : Ao Suthhep
- Ao Tien
- Ao Tum
- Ao Wong Duen
- Ao Yui
- Aosango
- AOW Deep
- Aow Leuk
- Aow Lok Gum / อ่าวลกกำ
- Aow Pakard/Pakkad
- Aow Suthep
- Aow Ta Lo Lancha
- Aow ThongTom / อ่าวท้องตม (ท่าเรือ)
- Aphrodite Rock
- Aphrodities Beach
- Aplysina
- Apnea Arena, Автотор-арена
- Apo Island
- Apostelsee, Ettenheim
- Appa Thila
- Aqua Giri
- Aqua House Reef
- Aqua Sportközpont Uszoda
- Aqua92
- Aquabest
- Aquamarine House Reef
- Aquarena Springs / Spring Lake
- Aquariaz
- Aquarium
- Aquarium
- Aquarium
- Aquarium
- Aquarium
- Aquarium
- Aquarium
- Aquarium
- Aquarium
- Aquarium
- Aquarium
- Aquarium
- Aquarium Anse du Souffleur
- Aquarium Boca Chica
- Aquarium Crocus City
- Aquarium d’Anchorage
- Aquarium de Cook
- Aquarium - Grand Cayman
- Aquarium Grgur
- Aquarium Gros Ilets
- Aquarium / Lhohifushi Corner
- Aquarium - Loreto
- Aquarium Reef 1
- Aquarium Reef 2
- Aquarius
- Aquarius (46)
- Aquaventure Helicopter & Boat Wreck Dive Site.
- Aquaventure Reef Club Shipwreck
- Aquaworld
- Aquário
- AQUÁRIO
- Arabella
- Arachne Reef
- Arado Plane
- Aramoana Mole
- Arari
- Arashi
- Arashi (Wreck)
- Aravind Wall
- Arbutus Point
- Arcanzil
- Archetto
- Archi E Grotte
- Archipielago de San Bernardo
- Arco do Cavaco
- Arco Iris, Brumel Island
- Arco Point
- Arcoiris
- Arcos Cruzeiro
- Arcos da caloura
- Arcos dal Calhetas
- Area 51
- Area Perlindungan Laut (Apl)
- Areal da Lapa
- Arena
- Arenas
- Arendshoofd
- Arenella Wreck
- Areu Passage Inner Reef Wall
- Areuse Schlucht
- Argentario - Isola di Giannutri
- Argentarola
- Argonaute fosse
- Arguineguin Reef
- Arguineguín Reef
- Aride Bank
- Ariga Cable
- Arild, Kullaberg
- Arlington Pool (Yorktown Highschool)
- ARM Santos Wreck
- Armageddon
- Armchair Reef
- Army Tower
- Aroa Lagoon Marine Reserve
- Aroa Rā’ui
- Arorangi Drop Off
- Arorangi Passage
- Arraia Reef
- Arrecife
- Arrecife Artificial
- Arrecife Barrera de Posidonia Playa de Aguadulce
- Arrecife, Cirkewwa (Norte)
- Arrecife Norte
- Arrecifes Artificiales - Reserva Marina Tabarca
- Arrecifes Artificiales Tabarca
- Arrecifes de Vichayito
- Arrifes-Claire
- Arrow
- Arroyo - San Pedro
- Arsida Canyon
- Art Reef by Vhils
- Artatore
- Artatore Reef
- Artesian Natural Hot Tub
- Arth, Egg
- Artifical Reef
- Artificial
- Artificial - Block2
- Artificial - Block3
- Artificial - Blok1
- Artificial Reef
- Artificial Reef
- Artificial Reef
- Artificial Reef and Coral Nursery
- Aruba
- Aruh Fanno
- Arvoredo - Saco do Engenho
- Arzentas Canyon
- As Doval
- As Doval de Fora
- Asdhoo Wreck
- Ashos Gap (Shark Cleaning Station)
- Asia (Wreck)
- Asinero
- Aspro Reef
- Aspronisi Wall
- Assenza
- Asta
- Astillero
- Astron, wreck
- Atabol
- Atalaya
- Atami
- Atami Kosoga Cave
- Atami Wreck
- Athens Scuba Park, Athens, Texas
- Atlantic Princess
- Atlantic Princess (Wreck)
- Atlanticus Diving - House Reef
- Atlantida
- Atlantis
- Atlantis
- Atlantis
- Atlantis
- Atlantis Palace
- Atlantis Rooftop Pool
- Atlantis (Scubaçao House Reef)
- Atmosphere House Reef
- Atnam
- Attersee
- Attersee, Marias Weg
- Attersee - Schwarze Brücke
- Atun
- Auesee
- Aundanao
- Aurora Reservoir
- Aussie Reef - Racha Noi
- Aussie’s Reef, Gneering Shoals
- Australian Wreck
- Aux Amis Plongeurs
- Avaavaroa Drop Off
- Avaavaroa Passage
- Avana Passage
- Avapeihi Pass
- Avarua Passage
- Avatiu Drop Off
- Ave Maria
- Avion Cessna 188
- Avlaki
- Avlaki Blue Flag Beach
- Avoca
- Avocet Dredge (Wreck)
- Ayara Bay
- Ayisigi beach
- Azul House Reef
- Azur
- Azure Diving House Reef
