Scuba is a recreational activity that allows a diver to explore the underwater environment in a more self-sufficient manner than snorkelling. Scuba diving is a safe and enjoyable activity, however it does have its hazards and risks that should be taken seriously. A scuba diver typically uses specialised equipment such as a mask, snorkel, regulator (which connects to a tank of compressed air), buoyancy control device (BCD), wetsuit or drysuit and weights. Divers must also be aware of any hazards specific to the dive site, such as coral reefs, tidal currents and marine life.

In order to maximise the enjoyment of scuba diving it is recommended that divers always follow basic safety rules, such as buddy diving and checking their equipment before and after each dive. Additionally, it is important to adhere to any limitations imposed on depth and time of each dive. This will prevent decompression sickness, nitrogen narcosis and barotrauma. It is also highly advisable to log each dive on completion, for several reasons. This includes recording the depth and duration of each dive, noting any issues experienced on the dive and calculating residual inert gas levels to assist with planning future dives.

Scuba diving is a great way to get outdoors and into nature, helping reduce stress, improve mood and increase wellbeing. It is also a fun and social activity, providing the opportunity to meet people with similar interests. Moreover, it helps keep people physically fit and can improve mental health, as it requires mindfulness to focus on the surroundings and breathing.