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A diving forum is an internet message board specifically for divers. It is the perfect place to connect with other people who share your passion for diving. You can exchange favorite dives, look up new spots that match well with your skill set, or even sign up for get-togethers and classes. It is also a good place to learn how to safely push your limits and expand your diving abilities.
Most diving forums contain areas for both recreational and technical divers. Recreational diving is what most beginners do. There are not set guidelines for what encompasses recreational versus technical diving. However, the general consensus is that recreational diving is limited to about 40 meters in depth. It doesn’t extend more than about 100 feet into a cave or shipwreck. In recreational diving you use a diving buddy, and breathe either Nitrox or air.
This contrasts heavily with the recently coined area of technical diving. The exact sphere of technical diving is still hotly contested, and diving forums will often feature threads (discussions) debating that very topic. Generally, technical diving meets at least one of the following criteria. It can be a dive that goes below 40 meters from the surface, or more than 100 feet into a cave or shipwreck. The 100 feet rule may seem odd, but that’s about how far light from the surface can extend into an overhead structure. Past 100 feet you will need lights to see where you are going. It can also be a dive that uses more than one air tank, with each tank having a different gas mixture. This setup allows a diver to more quickly decompress.
Of current debate is whether or not ice diving and the use of re-breathers constitute technical diving. In ice diving you have to pierce the surface of the ice to get to the water, and as such you cannot exit the water except at that specific point. A re-breather actually recycles the exhaled oxygen from your breath, “scrubs” the carbon dioxide from it, and places it back in the air tank. This can greatly extend the dive times available with specific air mixes because we only use about 20-30% of the oxygen in any given breath.