What will you see when you scuba dive?
Some lucky divers may catch the interest of a dolphin and the animal may then show off or play. Sea Lions, Harbor Seals, Stingrays, Spotted Eagle rays, and Giant manta rays to name a few!
What do divers look for?
Some people dive in search of abandoned treasures, or wrecks of ships or planes, others simply because they like to feel the sensation of being weightless. Yet, the majority of divers go underwater to see, to observe the strangest plants and animals.
What do scuba divers see with an artificial light?
By the time we are deeper than 66 feet (20m), everything appears blue/grey. Using artificial lights restores the colours but light from a flashlight does not have exactly the same wavelengths as light from the sun, so the colours we see will not be quite the same as if the object was out of the water.
What’s the most common scuba diving injury?
The most common injury in divers is ear barotrauma (Box 3-03). On descent, failure to equalize pressure changes within the middle ear space creates a pressure gradient across the eardrum.
Can non swimmers do scuba diving?
The answer is: yes, you can
To get certified as a diver, you need to know basic swimming (ability to float or tread water for 10 min, swim 200m unaided/300m with mask-fins-snorkel). However, to do introductory scuba diving program such as Try Scuba or a PADI Discover Scuba Diving program, swimming is not required.
Why can’t humans see clearly underwater?
So, when we open our eyes underwater, incoming light rays are hardly bent, or focused, at all. The inside lens bends the rays a little, but it can’t make up for the lost corneal refraction, so the light that reaches the retina isn’t focused and the underwater world looks blurry.
Why do things look blurry underwater without dive goggles or a mask?
Why do things look blurry underwater without dive goggles or a mask? Rather than air, light is moving from water into the cornea and is thus refracted too little for a sharp focus.