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See more of the best (and worst!) locations for such items as visibility, coral quality, and marine sightings etc.

1:  Cape Town / False Ba...
in South Africa
2:  Manado
in Indonesia
3:  Conception Bay
in Canada (east)
4:  Queen Charlotte Stra...
in Canada (west)
5:  Viti Levu
in Fiji
6:  Koror
in Palau
7:  Bali
in Indonesia
8:  South Male Atoll
in Maldives
9:  Gran Canaria
in Canaries
10:  Halkidiki
in Greece
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Rating: Ranked as Excellant by independant reviewsRanked as Excellant by independant reviewsRanked as Excellant by independant reviewsRanked as Excellant by independant reviewsRanked as Excellant by independant reviews95%
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Use our scuba diving calendar to quickly find which species will be where and when...

Region: Month: Species:

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From January to April
The whale-watching season begins in Baja, Mexico and runs until the end of April. You may see Fin, Minke, Bryde’s, Orca, Pilot and Humpback Whales, as well as Blue Whales - the largest mammal on the planet. There are few places in the world where these large mammals can be viewed so easily, and so close up.
From February to April
Whale Sharks in the Andaman Sea, Thailand from February to April.
From February to May
Pilot Whales arrive in Kadavu, Fiji and stay till May.
Look in these dive locations:
Oceania > Fiji > Kadavu
From March to June
The world's largest fish, the Whale Sharks, arrive at Ningaloo Reef following the coral spawning on the Western Australian coast, and stay around these waters until June, offering a unique opportunity to swim with these gentle giants.
Look in these dive locations:
Australasia > Australia (West) > Exmouth / Ningaloo
From March to April
March and April see Humpback and Grey Whales migrating past the Cape Verde Islands.
Look in these dive locations:
Africa > Cabo Verde > Sal Island
From April to June
During the months of April to June, southern Belize offers the opportunity to dive and snorkel with the gentle and curious Whale Shark. The best time to see these creatures is from three days before the full moon to three days after the last quarter moon. This is when the Cubera Snappers spawn attracting the Whale Sharks. From April to June is also the spawning season for many other species of fish and the mating season for turtles.
From April to July
Hammerhead Sharks can be seen right through until July in Costa Rica.
From April to May
Although spotted year round, April and May are the best times to see Manta Rays in Bali, Indonesia.
Look in these dive locations:
Far East > Indonesia > Bali
From April to September
From April until September Leatherback Turtles arrive on Tobago beaches to lay their eggs.
From November to April
Olive Ridley and Leatherback Turtles may be seen between November and April in Costa Rica’s Tamarindo Bay.
Look in these dive locations:
Tropical Eastern Pacific > Costa Rica (west) > Gulf of Papagayo
From November to April
Bull Sharks can be seen in Costa Rica, the Cocos and Malpelo Islands right through until April.
From November to June
From November to June there is a good chance of seeing Hammerhead, Zambezi, Bull and Tiger Sharks at Protea Banks, South Africa.
Look in these dive locations:
Africa > South Africa > Protea Banks
From December to April
In Hawaii the Humpback Whale season occurs from December to April.
Look in these dive locations:
Oceania > Hawaii > Hawaii
Oceania > Hawaii > Maui
Oceania > Hawaii > Oahu
Oceania > Hawaii > Kauai
From January to November
Whalesharks can be seen off Utila usually from Feb - May and Aug - Nov Most dive centres will look for whalesharks whilst carrying out surface interval between dives.
From January to December
Grey seal is resident all year round in firth of clyde. tadpole fish can been seen in may
From January to December
Schools of Barracudas, jackfish, green sea turtles, olive rydles, hawksbill turtles and bottle nised dolphins are seen the whole year round. The island waters get occassional visits from pilot whales, whale sharks and sometimes hammerhead sharks in deeper areas. - ping (local diver)
Look in these dive locations:
Far East > Philippines > Balicasag Island