Everyday life doesn't condition your leg muscles for the demands of diving, but our easy exercise plan does. Follow our advice and you'll be finning like a fish in no time.

#7 2000 lbs. of lead and I'm still floating?

Student Registration "Wizard" Makes Registering NAUI Course Graduates Easier

#10 "Was your nose bleeding like that when you went under?" Christina Booth of Brooklyn, N.Y.

Lots of batteries mean lots of light. But we tell you which lights make best use of all the power.

Your dive buddy just ran out of air and he's coming for you. Is your octopus reg up to the job?

Once bordering on extinction, California's black sea bass are staging a big comeback.

More v. Bigger. In general, look for more batteries (six or eight) if you want a brighter light; look for bigger batteries (C or D cells) if you want longer burn time. You can find more light buying tips in Night Skills, our feature devoted to ...