COVER STORY Languid Salt Cay, A Turks & Caicos Hideaway Until a decade ago, the only time Salt Cay got much attention was after a Hollywood mogul read a 30s romance novel about Salt Cay's salt barons entitled Dildo Cay and turned it into a movie, tastefully retitled "Bahama Passage." Now, several sleepy decades later, handfuls of divers join the 130 residents for Salt Cay diving, which ranges from the eels, eagle rays, and reef fish among the corals and sea fans along North Wall to the possibility of snorkeling with 45-foot humpback whales. Check out our picks and nixs of the diving, the dive operation and places to stay.   Your Own Photo on a Postage Stamp How would you like your underwater photo - and your name - gracing an official postage stamp? Get the info on the contest and make sure your underwater photos are among the anticipated 225 entrants competing for $10,000 in cash--and their pictures on a stamp. Why Divers Die, Part III: Out of Air Running out of air is something that should never happen, but it does happen - all the time. Reasons run the gamut from panic to inexperience to equipment failure. Find out which mistakes were fatal ones and when to worry that helping a distressed diver might be placing yourself in danger. Tragedy on Saba Undercurrent extends its condolences to the friends and family of Curtis Huber, PADI Master instructor and co-owner of Saba Reef Divers, who was killed when a 16' x 3' boulder, shaken loose in a landslide, landed atop his pickup truck. Travelin' Diver's Update Whether you've dropped a few hundred to dive the Florida Keys or a few thousand on a live-aboard in the South Pacific, you count on getting the dive quality you'd expected - which doesn't necessarily mean you will. Find out how readers rate a host of destinations from Fiji to Costa Rica to Papua New Guinea. And, if you're considering trips to destinations like St. Vincent, Belize, or Maui, you'll want to hear which operations rate bouquets and which earn brickbats. Get the full story! Undercurrent.org: Phase II Announcing the second stage of www.undercurrent.org, coming soon. Phase II will bring years of back issues of Undercurrent, In Depth, and The Travelin' Diver's Chapbooks online, allowing site members to search by subject and instantly access all the info available on a destination - at the click of a button. Sign up for our e-mail list and be notified when Phase II is up and running. [Phase II is available now -- DSE , webmaster] Fighting Off Seasickness If you've ever been truly seasick, you know why some people consider death a preferable option. But there are a host of remedies, from herbal tonics to drugs to acupressure cures, that minimize the mal de mer. Find out what you can do to ward off seasickness and which of the newest drugs show the most promise. New Malaria Drug For those who have been less than pleased with the malaria medication Lariam, new hope is on the horizon. Not only are researchers testing a new, genetically-engineered vaccine that shows great promise, but a new two-drug treatment regimen - without Lariam's side-effects - is also proving very effective. Shark Attacks With divers, surfers, swimmers, and rafters all invading the shark's domain, the International Shark Attack File housed at the University of Florida shows that shark attacks are up worldwide. Find out which groups are most likely to be attacked and what regions are considered most dangerous, as well as what readers thought of our May, 1998, article about the dangers of orchestrated shark feeds. Flotsam & Jetsam Would you believe the one about the diver killed by a fisherman's hand grenade? In our column of news tidbits, Undercurrent poses some medical dive questions, such as whether women's risk of DCS varies with their menstrual cycle and whether sport diving increases the risk of dysbaric osteonecrosis.