Diving is a unique sport in that it requires life support equipment.
I went shark diving in the Bahamas, but I wasn't allowed to touch them. The sharks I dove with were between 4-6 feet long!
Learn How to Equalize Properly. Tips From Scuba Diving Magazine
The Healthy Diver: Tips for Clearing Your Ears | By Sport Diver Magazine
Scuba Diving Tips and Training
7 Best Cave Dives | By Scuba Diving Magazine
5 diving tips to help you stretch your tank and maximize your bottom time.
How to Prevent Vertigo While Scuba Diving — Scuba Diving Magazine
10 Budget-Friendly Dive Accessories | Scuba Diving Magazine
Scuba Diving: Gear
Vintage scuba diving, with Lloyd Bridges
Scuba Diving Nitrox - Great for Hangovers and you get to use that Damn Algebra!