DIVING GLOSSARY · Planning and conditions
Visibility
How far a person can see through the water under the observed conditions.
Explore the idea in context
Definitions are a starting point. These lessons connect the word to examples, illustrations and further reading.
Underwater science
Light and colour underwater
Understand why underwater colour and brightness change.
Read lesson →Planning your dive
Understanding visibility
Explain why a visibility estimate needs context.
Read lesson →Introductory definition · Instructor review pending.