Some of world's best freedivers are marine mammals like dolphins and whales. By taking the SSI Monofin Freediving Specialty program, you will gain the knowledge and skills required to maximize your underwater efficiency by diving with a monofin. You will earn the SSI Monofin Freediving Specialty certification after completing this program.
You see more information about SSI here.
Never dive alone and let the stress at the surface! =)