An algorithm is the mathematical formula a dive computer uses that factors in real-time measurements of depth, gas mix, time at depth—and, depending on the algorithm, potentially lots of other data—to calculate how long you can stay under water with a reasonable degree of assurance that you won’t get hit with decompression sickness (DCS).
Buying your first scuba diving mask? Ideally, you'd be able to try various models on while in the water. If that's not practical or possible, follow our dry-fit tips for finding the mask that's perfect for your face.
Take on the ocean's silent killer. September’s Debris Month of Action is a month-long rally to inspire underwater action to stop plastics, cigarette butts, fishing gear and countless other items from choking our ocean planet.
Calling all photographers (amateurs, professionals and students alike), submit your best underwater or dive lifestyle photo in the PADI Diving Society Member Card Photo Contest and your image could become the next Society card. Last year, more than 8100 PADI Instructors and Divers voted for the 2012 PADI Diving Society member card and chose Darin Dow Sakdatorn's black and white image of the Emily Flying Boat wreck in Micronesia's Chuuk Lagoon. Who's next? Submit your best photo(s) by September 21, 2012 and your image may wind up in the hands of Society members worldwide.
When you Join the Tribe™ by becoming a PADI Divemaster, you align yourself with the largest and most respected dive tribe in the world – that of PADI Professionals. These are PADI Divemasters and Instructors who share a passion for diving and an active concern for the health of the world’s oceans. And, they want you to join the PADI Tribe, too, as a PADI Divemaster!