Dive with us in Western Pennsylvania, where we found a quarry with a secret you wouldn't expect. (Spoiler alert: It's a seasonal jellyfish bloom that never fails to dazzle.)

It may fly under the radar in the dive world, but make no mistake: There are ample diving opportunities on this tiny Caribbean island. Start with these five sites.

The Scottish archipelago is famous for basking sharks, but now it's becoming known as a biodiversity hotspot.

If you’re willing to shoot outside the box, Lembeh Strait offers some very nice, “classic coral reef” wide-angle photography that only adds to the allure of this traditionally macrocentric muck-critter destination.

Lovers of the little will find no end to the pleasures found at these three destinations, voted best by Scuba Diving readers for their macro life.

Every year, spawning salmon return to the same spot in Alaska as a part of their final act—here's what happens

Some divers will have you believe that the key to real discovery is going deeper. While there is plenty to behold in the depths, here's why you shouldn't discount all that can be held in shallower waters.