This picture gallery showcases some of the year's best underwater photography as chosen by the judges of two major competitions - the Our World Under Water competition and the fourth annual Deep Indonesia International underwater photo competition. Prizes for the events were worth over $120,000 (£74,000). The two competitions attracted over 5,000 entries and winners were picked from 20 countries across the world.
Checkout the best underwater photos that won the contest in 2010.
Blue Eyes - Morray Eel in Indonesia.
One of the world's best underwater pictures
The boss and the gang - Lemon Shark and Pilot fish in Red Sea
One of the world's best under water pictures
Cowshark - A Cowshark in Cape Town, South Africa
underwater photography
Multitude - Schooling Catfish in Indonesia
best underwater photography
Continental trench - Diver in a continental trench in Silfra, Iceland
Mistery Wreck - Diver inside wreck in Gran Canaria
Underwater Sadness" - Sea turtle in Sea of Cortez, Mexico
One of the most stunning pictures in the photography contest.
Untitled - Sweetlips in unspecified location
Sand Tiger - Sand Tiger shark in a school of fish in North Carolina
Inner Glow - Jellyfish in Ningaloo Reef, Australia
Best underwater photos taken at the planet's most beautiful nature spots.
Reflection - Lion fish in Red Sea, Egypt
Schooling Jacks - Diver and schooling Jackfish in Indonesia
Are you looking at me? - Jack fish in Sipadan, Borneo, Malaysia.
Women profile - Soft coral and schooling Bait fish under a pier in Raja Ampat, Indonesia
The First Born - Seahorse Baby - a Seahorse in Singer Island, Florida
Froggy and Shrimpfish - a Frogfish and Shrimpfish in Indonesia
Lion Fish - Lion fish with schooling Glassfish in Red Sea, Egypt.
Thanks to Keri - Juvenile Flying fish in Raja Ampat, Indonesia.
Hitting Sailfish - Sailfish attacking schooling fish in Port St. Johns, South Africa
Hungry - a Leopard seal in Antarctica
Stargazer - Stargazer in Blue Heron Bridge, Florida.