These freshwater experiences — from Iceland and the Great Lakes to China and the Florida springs — offer an exhilarating change of pace.

Check out award-winning photography from BlueSphere Foundation featured artist — and Scuba Diving Magazine's 2011 Sea Hero of the Year — Shawn Heinrichs, working in Tonga.

Have you always wanted to produce your own film? The BLUE Ocean Film Festival can make that a reality.

Have you ever wanted to dive in the dark? Craig Dietrich relives his first night-diving experience and provides tips for nighttime underwater photography.

Test your knowledge of dive geography using the three clues to determine the name of this mystery dive spot.

Ever thought about free diving? Watch Guillaume Nery do that at Dean's Blue Hole in the Bahamas.