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SSI - Your Choice for Certification

Explore the world’s best cave diving spots

Many divers find it a love and hate relationship with cave diving, but still caves and caverns have this mysterious darkness and narrow passages that attracts many divers. From sinkholes, over grottoes to caverns, whether you are an open water diver or a cave specialist - there is something for everyone. As a diver, you need to step up your game to try it out and you’ll need specialized training to enjoy the best cave dives in the world. Find your next cave-diving adventure!

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Discover the World’s Most Fascinating Aquatic Life

Aquatic life under our oceans, lakes, rivers, and streams is amazing! From microscopic zooplankton to the largest animal on earth, the blue whale, underwater life comes in all possible shapes and sizes. With 71% of the earth being covered with water, it is no wonder we are so fascinated with what lies beneath the surface. In fact, scientists estimate that there are nearly 1 million different species of aquatic animals. Freshwater ecosystems are home mainly to fish, invertebrates, and reptiles, whereas the ocean contains a wide array of marine life including fish, mollusks, crustaceans, reptiles, sharks, and marine mammals like whales, dolphins, seals, and manatees.

Trout

One of the more beautiful types of freshwater fish, trout is the common name for a large number of different freshwater species closely related to salmon. They live exclusively in freshwater lakes and rivers and come in a wide variety of colors that change based on their environment, making them masters at camouflage. Preferring cool, clear streams and lakes, they can be found in waters averaging 10-16 degrees C (50-60 degrees F) so if you want to go diving with trout you better bring a thick wetsuit.

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Moray Eel

One of the most fascinating fish on the reef, moray eels come in nearly every size and color from the tiny, bright blue ribbon eel, the smallest averaging only 25 cm long, to the black speckled giant moray which can grow up to 4 meters in length! In fact, there are nearly 200 different species. Most morays are marine dwelling fish, but several species have been seen in brackish water, and just a few are found in fresh water. They are clearly distinguishable from the other reef fish with their long, slithering bodies, pointy snouts full of sharp teeth, and long dorsal fins that run the entire length of their bodies. No matter the species, these animals are always an exciting site to see while scuba diving.

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Clownfish

Not the best swimmers, Clownfish seek shelter in their anemone homes throughout most of the day. These distinctly colorful fish have developed a highly intricate and mutually beneficial symbiotic relationship with their anemone homes, earning them the nickname: anemonefish. Due to this sophisticated relationship, they tend to stay within a maximum radius of four meters to their anemone host in order to hide quickly within its tentacles in case of danger. If you’re lucky enough dive with clownfish you could experience these cute little fish attempting to “attack“ you to defend their anemone.

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Lionfish

Lionfish are native to Indo-Pacific waters and are usually found hiding under ledges or in shallow caves at depths between 2 and 60 meters. They are diurnal, meanings they hunt both during the day and at night but often stay hidden until sunset to avoid predators. Unfortunately, lionfish have become an invasive species in the western Atlantic Ocean and Mediterranean Sea. In fact, despite their menacing beauty, lionfish have become a huge problem in the Caribbean as their population has spread tremendously in just a single decade. In fact, the Science Channel has claimed they are “one of the most aggressively invasive species on the planet.” These flashy predators are considered fairly aggressive and harmful to humans so take caution when diving with lionfish and keep a safe distance.

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Check Out the Incredible Moments Water Enthusiasts Like You Experience Every Day with SSI

Did you just complete an SSI certification? Proudly post it! Want to support your favorite SSI Training Center and promote it to the world? Post it! Did you just have an unforgettable dive experience with your SSI Professional? Post it!

We love to see the SSI family growing day by day: so upload your photo to Instagram with #wearessi or #divessi or mention @ssi_international, and it will automatically appear in the SSI Hall of Fame. We can’t wait to see your adventures today!

Discover the Wonders of the Deep with SSI's Blog

Join us on an exciting journey of discovery and learn more about exhilarating diving adventures, dedicated conservation initiatives, and innovative educational opportunities that will help you illuminate the extraordinary beauty of the underwater world. Let's explore the underwater world together and delve into the hidden wonders beneath the gentle waves.