Is it carbon dioxide buildup, sinus trouble, tension or decompression illness that's crunching your skull?

We rounded up 30 models to help you find the best possible view on the underwater world.

$160 or $1,600? Is a high-end model really better than a plain-jane one? The answer may surprise you.

The Best of 2004 & What's New for 2005.

In an area of the Pacific known as the heart of the world's marine biodiversity, one island group stands out for its jaw-dropping abundance of life.

Micronesia. The name alone is magic to divers' ears. But to the rest of the world, it's practically unknown. Here's why divers want to keep it that way.

These 10 hot spots in the cold Emerald Sea may be the best diving in North America.

Our man hits the backroads of "the real Florida" to explore five popular springs.

Lost under water? We can help. Lost in the Wal-Mart parking lot? You're on your own.