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.

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

This underwater photographer has a unique approach that we cannot get enough of. See his incredible photos here.