Judy G is at it again — and back in Hawaii! Check out 20 stunning underwater photos from her scuba diving trip to Big Island, Hawaii.

Discovering the secrets of the cargo holds in one of the Red Sea’s greatest shipwrecks, the SS Thistlegorm.

The best places to swim with whale sharks, from Belize to Tanzania.

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Tucked away in a Russian region, get to know an underwater secret spot: Vad Lake.

Hammered by Norse gods of old, Iceland's mirror lakes conceal a spreading rift below, a molten gash that cuts to the very center of the Earth.

What you don't know about swimming with oceanic whitetip sharks won't hurt you — right? Find out about diving with these fish in the Bahamas.

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Experience the underwater world of Ontario, Canada — it's a wreck diver's paradise.