Making an unplanned and untrained cave dive dooms a pair of inexperienced divers. The latest installment in our dive-training series "Lessons For Life."

Are purpose-sunk wrecks safe for basic penetration, or are they an accident waiting to happen? Eric Douglas asks experts from around the world for expert advice when going to dive sites hosting wrecks.

Before you get in the water with your brand-new underwater camera housing, here are our best tips for prepping it so that it's ready for its first scuba dive.

Tip for staying warm underwater: Match the thickness of the neoprene in your wetsuit to the temperature of the water you're scuba diving in.

Do you have what it takes to dive under the ice in Russia's White Sea? Our experts give an expanded list of the necessary scuba diving skills and training to complete this challenging technical dive, as well as the diving gear you'll need. Hint: A fantastic drysuit and dry gloves are No. 1 on the list!

Has innovation made rebreathers user-friendly for all divers, or are they still reserved for the pros?

Don't understand the difference between flatlock and blind-stitching to create the seams in a scuba wetsuit? Before buying a new one, get educated.

Would you know what to do if you are stranded in open water after a dive? Here are five tips that just might save your life.

An experienced diver tries to manage a panicky newer one, with tragic results. Learn from these important Lessons For Life.