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Secchi Disk: A Do-It-Yourself Conservation Tool | Tracking Plankton with Citizen Science

Through a unique global study, seafarers are taking part in recording the effects of climate change through an app. Check out how the Secchi app works!

2015 Readers Choice Awards: Top 100 Gold List

Our Top 100 Gold List: Readers vote for their favorite dive resorts, operators, liveaboards and more. Results were determined by popular vote.

Our World Underwater Hosts Dive and Travel Expo

Our World Underwater hosts its World of Water Chicago Dive and Travel Expo this weekend! Check out information on the event!

Press Release: Ikelite® Lens Extension 2.2-Inch

The Lens Extension uses the unique press-fit design, which has become standard on Ikelite housings for Compact DSLR and Mirrorless cameras.

Take the Survey - Tell us How You Use Our Florida Reefs

How do use Florida's reefs? Take the Southeast Florida Coral Reef Initiative's survey.

Whale Shark and Marine Conservation Program

Embark on whale shark snorkel trips at the WSORC program, where where you will have the opportunity to help researchers collect valuable data on this enigmatic gentle giant.

Video: Epic Freediving Footage in Underwater Film "Ocean Gravity"

This incredible underwater video — titled Ocean Gravity — follows a freediver on a fast-paced, weightless adventure across the ocean floor. You don't want to miss it!

Whale Watching in Los Cabos

With several local tour companies and 90 percent of whales migrating, the scenic beaches of Los Cabos makes it the perfect destination for whale watching.