The word “scuba” might be unfamiliar to many people, but it’s the acronym for a diving system that allows divers to explore underwater environments for extended periods of time. The equipment houses a separate air supply that reduces the pressure on the diver while underwater, allowing them to breathe through a thin hose that makes tiny bubbles.

The system is a favorite amongst recreational divers and has allowed many people to experience the wonders of the sea in ways they could not otherwise do. Many individuals enjoy the meditative aspect of the activity, viewing marine life and exploring underwater wrecks, caves, or reefs. Others enjoy the ability to dive in places they cannot reach by other means, including remote locations.

While scuba is not an extremely physically strenuous sport, it requires training before a person can get certified. Getting the proper training, as well as being medically fit for diving, is critical for a safe and enjoyable dive trip.

In addition to scuba diving classes, many scuba divers will undergo a physical and swim test before obtaining their certification. This helps ensure that the student can support themselves under water without having to work too hard, as well as that they have sufficient strength and stamina to safely dive.

Historically, scuba divers held their breath while under the ocean to stay immersed for long periods of time. It wasn’t until the development of the diving bell that a way to do this was possible without running out of oxygen. Today, some scuba divers use rebreather systems, which recycle and filter unused oxygen from the system to ensure that it is always full.