Here’s how to plan the perfect Key Largo adventure in John Pennekamp Coral Reef State Park.

See colorful marine life, thriving reefs, and crystal-clear waters at these top destinations from the Florida Keys to Australia. Off the coast of Brazil, halfway between São Paulo and Rio de Janeiro, ...

It doesn’t involve flippers. Or masks. And forget diving. Land snorkeling, according to its ethos, could be watching an army of ants re-engineer a driveway crack; noticing the perfect spheres of dew ...

Snorkeling offers some of scuba diving's visual benefits, but does not require certification or expensive dive gear. A snorkeler requires only a mask, fins and a snorkel that allows him to breathe air ...