From breaching great white sharks to electrifying cuttlefish, Justin Gilligan's underwater images are nothing short of mesmerizing.

Share your photos with us by using #ScubaDivingMag when posting underwater photos and videos on Instagram.

These are some of our favorite animal-behavior images submitted in the 2016 photo contest. It's not too late to enter your photos in the 2017 contest!

Learn how to use Lightroom to create a version of your image that is suitable for social media, email and printing.

We just can't get enough of these nudibranch photos from the 2016 *Scuba Diving* magazine photo contest.

View some amazing over-under images submitted in the 2016 photo contest. It's not too late to enter your photos in the 2017 contest!

Take a look at some of the strange and wonderful creatures that inhabit the ocean, as seen through the eyes of some of underwater photographers.

Scuba is a man's game in South Korea — these women dive for their living.

For more than 20 years, Georgienne Bradley has been the motivating force behind countless initiatives to protect the world’s oceans through marine conservation.