Gas Blender Correctly mixing gasses is essential to being able to breathe safely underwater. The SSI Gas Blender program teaches you the skills and concepts required to safely blend nitrox and helium-based trimix gases. This non-diving program is open to certified and uncertified divers and teaches proper usage of mathematics, gas... Find Out More

Tech XR Advanced Wreck he SSI Technical Wreck Diving course provides all you need to conduct complex wreck penetration dives. Using a sidemount, twinset, or rebreather configuration you will increase your technical dive skills and learn high-level buoyancy control, finning techniques, line laying, the use of lights, lost line, lost light, an... Find Out More