Monterey Bay

Monterey Bay, California: Cold-Water Diving at Its Best

Monterey Bay offers an unparalleled cold-water diving experience, and is home to some of the most diverse marine ecosystems on the planet.

10 reasons I love being as SDI Scuba Instructor

10 reasons I love being an SDI Scuba Instructor

Is being a Scuba Diving instructor really your dream job? Here 10 reasons I love being as SDI Scuba Instructor

Ocean Day

World Ocean Day

Discover the underwater world on the amazing Caribbean island of Saba.

Manta Ray

Diving Dreams and Manta Rays on Ishigak

Discover the captivating world of Ishigaki Island in Okinawa where we go in search of the majestic manta rays.

Equalization

Underwater Equalization

Everything you need to know about equalization and techniques to perfect it, whether for diving or freediving

SDI Advantages from TDI

SDI advantages from TDI

SDI, with its sub-brands TDI, ERDI, and PFI, remains committed to TDI’s original focus on safety and quality.

Are we doing enough to protect Florida’s favorite marine mammal?

New threats to the Florida manatee raise conservation concerns

Are we truly doing enough to ensure the protection and well-being of Florida’s most beloved marine mammal?

Running: a Family of Scuba Divers

Running: a Family of Scuba Divers

Carney and Meany will run in Hires’ honor while raising funds for Team RWB, with donations accepted through SDI’s nonprofit, Clear Currents.

Dive Computers

Dive Computers

Modern dive computers provide a wide range of additional information that can help us make the most of each dive, while making it safer.

Freediving Photography and Marine Conservation

Freediving Photography and Marine Conservation

Freedivers armed with nothing but their breath and underwater cameras are playing a crucial role in ocean conservation.