Trinity Caves

Discover pristine dive sites that cannot be reached from shore and experience the excitement of liveaboard diving. Learn all you need to dive from boats with the SSI Boat Diving Specialty. Start today!

Learn to identify stress, prevent accidents, and learn rescue diver skills with this essential Diver Stress and Rescue Specialty program. Help yourself and other divers to stay safe. Get started now!

Extend your dive time, shorten your surface intervals and spend more time exploring the dive sites you love, with the SSI Enriched Air Nitrox Specialty certification program.

Diving does not end when the sun goes down! Become a night diver and meet the incredible marine life that only comes out at night. Join the SSI Night Diving and Limited Visibility specialty program.

Become a better, more confident diver who always knows where they are going. Learn how to use a dive compass, natural navigation techniques and more. Join the SSI Navigation specialty today!

Make lost items a thing of the past with the SSI Search & Recovery specialty program. You will learn all you need to plan and conduct search and recovery dives, so you can find lost items with ease.

Many exciting and iconic dive sites lie in deeper waters. The SSI Deep Diving Specialty will get you there - safely and with confidence. Learn how to plan and conduct dives to between 18 and 40 meters deep with SSI.

The SSI Perfect Buoyancy Specialty is the best way to improve your body position for relaxed dives, lower your air consumption and increase your bottom times. Take control of your enjoyment. Start online now!

Learn how to take underwater photos that capture your dive highlights and incredible marine life encounters with the SSI Photo & Video Specialty program. Get started online today.

Sharks are vital for healthy oceans and are truly spectacular to dive with! Join the SSI Shark Ecology program and learn how to dive safely with sharks, why their behaviors are misunderstood and more. Start online today!

The SSI Marine Ecology Specialty program is the best way to discover the exciting science of marine ecology and become an underwater naturalist. Enhance your dives in a new way. Earn the SSI Marine Ecology specialty certification now!

You will learn to identify sea turtles species, discover their history and role in marine ecosystems, and threats to their survival. Upon completion, you will earn the SSI Sea Turtle Ecology Specialty certification.

Learn how to identify fish with the SSI Fish Identification specialty program and enhance your dives! Discover all you need to identify common families of Caribbean, Indo-Pacific and Red Sea reef fish and earn your SSI Fish Identification specialty certification.

Do you enjoy nitrox diving? The SSI Extended Range Nitrox program will certify you to dive to a depth of 40 meters with limited decompression while diving with nitrox. Start online today!

Are you looking to become a tech diver? To dive deeper, farther, or longer than you ever have done before? Begin your journey and extend your range with the SSI Extended Range Trimix diver certification program.

Do you dream of diving in the crystal-clear waters of a Mexican cenote or exploring caverns in the Mediterranean? Become an SSI Extended Range Cavern Diver and discover the thrill of leaving direct access to the surface behind! Start online today!

Go further than you ever have before and experience the thrill of underwater cave diving. Learn to explore caves with a single navigational choice in the SSI Cave Diving program. Join the exciting world of technical diving today!

Discover the freedom and tranquility that keep freedivers returning to the water. Learn how to go freediving with this essential freediver training and earn your SSI Basic Freediving certification! Your adventures as a freediver begin here!

Do you want to lead certified divers underwater, begin the path toward becoming a scuba diving professional, improve your skills, or get closer to the coveted Divemaster rating? Become a Dive Guide and upgrade to Divemaster today!