The video of Keller Laros’ rescue of an entangled Kona dolphin went viral last year, but protecting Hawaii’s manta rays is our July Sea Hero’s real focus.

This volcanic vacation destination trumped the competition in five Top 100 Readers Choice awards, including a No. 1 spot for shore diving.

A diver has an unnerving experience during a dive off Maui's Nakalele Point. Watch the video and you be the judge: did he take the ride intentionally?

The Coral Reef Alliance helps West Maui hotels retrofit in ways that will keep excess nutrients off the reefs. Maui is expanding its distribution system for R-1 water — recycled water treated to the highest standard possible. Learn about it!

From the Andaman Sea to the Coral Sea, this region offers unspoiled reefs, big animals, thrilling drifts, World War II wrecks and unparalleled macro life.

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Current is king at these 6 global hotspots — choose your flyby and let yourself be swept away.

There’s no better way to spice up a dive destination than by adding a wreck. We’ve compiled a guide to our favorite purpose-sunk wreck dives.