These colorful fish add a lot of personality to the reef, rocks and tide pools. You just have to look closely to spot them.

We're ramping up for Earth Day 2015 here at Scuba Diving magazine! So to get yourself in the spirit, here are 10 things that you'd miss if the ocean called it quits!

With its night dives, endemic fish and lava formations, the Big Island is a perfect paradise for a scuba diving vacation.

The "Advanced Dive Behavior" tag can record whale behavior, biology and travel data every second for weeks at a time.

These marine reptiles are endangered and beloved by scuba divers.

The shore-based census of humpback whales in the Aloha State is conducted three times per year.

Officials suspect the sea turtles drowned in illegal fishing nets.

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The orca who inspired the anti-captivity documentary *Blackfish*, after killing an Orlando trainer, died Jan. 6, 2017.