An introductory course to the world of free diving.
Hi, I'm Ryan Johnson. I am a shark biologist and host for National Geographic's Sharkfest. I founded the Shark Research Unit in 2014 as a vehicle to continue academic studies on sharks throughout South Africa. I am excited to lead our team of scientists and conservationists as we take on ever increasingly challenging projects. I also enjoy sharing our work with students and enthusiasts from around the world. Especially introducing them to the world of sharks through our dedicated internship programs, edutours and our latest online eLearning series of shark courses.