Shark Ecology Sharks and humans, a complex relationship. How do sharks and humans coexist and protect both sharks and humans. You first read about the history and evolution of the shark. Further on the way of reproduction, the use of senses and the different species. Conditions for participation and requirements Minimum age and previous education The minimum age is 6 for snorkeling students and 10 years for diving students. Required for certification Reading through the theory and taking the online exam. When You can start directly with the theory online. After your booking and payment you will receive the theory online and you can read it and take the online exam. Price The price is € 75,- including digital course material and digital certification. Extra to book is the plastic certification card for € 10,-.