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Nat Geo Travel Contest

Returning from a snorkeling excursion during a trip to the Great Barrier Reef, wind speed dropped to zero and the ocean became a mirror. As the horizon disappeared, only the seaplane, sitting confidently between the blue elements, provided a sense of space and felt like a link to the rest of the world.

For more entries click here.

National Geographic traveler photo contest 2013

Now in its 25th year, the National Geographic Travel Photo Contest

inspires lush and evocative images from around the globe. See some

examples of the entrants from 2013 -- the photo captions are written by

the photographers. The contest is still going on, and entries will be accepted through June 30.