Freediving Specialities Ready to take your freediving to the next level? With SSI Freediving Speciality programs, you can do just that. From Shark Ecology to Wreck Freediving, Freediving Stress & Rescue to Dynamic No Fin, there are so many courses to choose from. You can see a full list of courses on the SSI website. When you find your perfect course, simply get in touch to get the ball rolling and get certified.