The guide, launched by the Wildlife Trusts and the Green Blue, a joint environment initiative by the Royal Yachting Association and the British Marine Federation, advises on how not to break laws which forbid people from disturbing wildlife.
It urges keeping a safe distance from marine creatures and warns against chasing animals or driving head-on towards them. People are also being urged to report sightings of sea life such as turtles and sharks to help researchers.