We all know that we should avoid touching a reef. But are you aware of the many common reef inhabitants that are capable of inflicting a painful, and occasionally fatal, wound? Check out underwater photographer Judy G’s gallery of beautiful but dangerous underwater creatures.

Grand Cayman to Host Legends and Lions Week. A Week-long Diving Celebration scheduled for October 4-11, 2014 in Grand Cayman, Cayman Islands.

At first glance, these tiny white-spotted bamboo sharks appear to be suspended in oddly-shaped balloons! These shark pups make for a great photo opportunity. Find out the best way to capture them here!

The video of Keller Laros’ rescue of an entangled Kona dolphin went viral last year, but protecting Hawaii’s manta rays is our July Sea Hero’s real focus.

From a distance, it looks like a huge oil spill - but when you look closer, you can see that it's actually a massive school of fish. Samples of these Northern anchovies were taken to the lab for analysis, but scientists are still unclear on why they appeared off the coast in such shallow water.

Palau's excellent scuba diving earned it a number awards in our annual Top 100 Readers Choice Awards.

Love historic shipwrecks? Read about the City of Chester, which NOAA recently discovered in San Francisco Bay. This Gold-Rush-Era steamship was an amazing discovery off the Golden Gate Bridge, and touts fascinating maritime history.

Since 2001, the Digital Shootout has pulled together the most advanced staff of underwater experts for a week of learning the latest in gear and shooting techniques. Our on-site staff includes the top level experts at Backscatter, Aquatica, Nauticam, Light & Motion, Canon and more.

Meet Bonaire's underwater supermodels — arrow crabs! These curious creatures make excellent photo subjects, looking head-on into the camera lens.