By: Zak Breezer
Adventurous souls frequently tackle one exciting hobby after another. From rock climbing to white water rafting, they're always looking for the next great rush that they can experience by confronting physical challenges or even danger. As long as they prudently get the training and preparation they need for such excursions, they should be able to avoid many potential risks.
Underwater diving is definitely one of the activities sought by such adventure-seekers as it can be both exciting and dangerous. Snorkeling and scuba diving are the two varieties of diving available to people and each comes with its own specialized equipment and necessary training. A wet suit and an oxygen tank allow expert swimmers to experience the depths of the sea. Shallow areas such as reefs are accessible to snorkelers, who also must be great swimmers. Extreme care is necessary for either activity.
The loss of oxygen is probably the biggest danger because should a scuba diver become damaged or even lost in the sea, a race to the surface is the only means of avoiding drowning. Snorkelers also must worry about an unexpected loss of air supply and need to make a made dash to a boat or shore. Making certain that the tank functions properly and constantly monitoring it while submerged are vital for scuba divers because a simple kink in the air line can spell disaster while under water.
The bends are the other great danger for divers exploring the deep sea. They occur when a diver either surfaces or dives too quickly. The bloodstream becomes deluged with dangerously high levels of oxygen that can cause problems for the circulatory system. The condition can actually be fatal if not immediately addressed. Never dive alone and it is a good idea to have a person in the boat while you are diving so that they can summon aid immediately in case of problems.
The greatest threat for some, at least mentally if not physically, comes from man-eating sharks like the great white species. These creatures can grow to a length of 20 feet or more. There are several accounts on record to show that they can and will attack humans, leading to extreme bleeding from injuries, the loss of a limb, or even death. To avoid this problem, it is best to stay away from the known feeding grounds of underwater predators like the shark. Eels and jellyfish are other kinds of defensive creatures whose stings can be serious.