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February 5, 2012, 6:06 am
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sunrise: 6:50
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    Hawaiian  green beauty...

    Hawaiian green beauty...

    Every diver has favorite things they like to see underwater.  For some its sharks, for others rays, but for many people turtles top the list of fun aquatic finds.  The Green Turtle (Chelonia Mydas) in particular has been a scuba favorite for years due to its good looks and reef-dweling nature. 

    Despite their name, Green Turtles are actually a light color all over, with the shell ranging in color from olive green to black, depending on where the turtle lives.  Green turtles are migratory animals, traveling thousands of miles each year to nest.  In fact, they only nest on the very beach they were born, so in order to lay eggs, they must return to that same beach.

    Green turtles are on the endangered species list and therefore protected in most countries around the world.  Besides humans, the tiger shark is a Green turtle’s main predator.  Adult green turtles can grow to 5 feet long and weigh over 500 pounds, so sharks tend to target younger specimens for snacks.

    So if you are determined to dive with these beauties in the wild, where can you go for a guaranteed sighting?  The range of the sea turtle extends throughout tropical and subtropical seas around the world, with two distinct populations in the Atlantic and Pacific Oceans.  Interestingly, green turtles react differently to scuba divers depending on their location.  On one side of Oahu turtles are curious and friendly, while on the opposite shore they jet the moment they see you, so two different dive sites around the same island can produce very different results.  When visiting green turtle waters, it’s important to get the input of the locals to find the best locations for healthy, long-lasting viewing.  But planning a trip to a locale with a concentration of these green jewels is the first step.

    Atlantic

    In the Caribbean, major nesting sites have been identified on Aves Island, the U.S. Virgin Islands, Puerto Rico and Tortuguero in Costa Rica. Within United States waters, minor nesting sites have been noted in the states of Georgia, North and South Carolina.  Florida attracts them in droves especially near Hutchinson Island, Indian River Lagoon, the Florida Keys, Florida Bay, Homosassa, Crystal River and Cedar Key.  In South America green turtles enjoy the waters off Surinam and French Guiana as well as around the island of Ascension.

    Pacific & the Indian Ocean

    In Mexico, green turtles are found in seagrass pastures in the Gulf of California.  They are found throughout the Hawaiian Islands, most notably in Oahu and Lanai and west in the waters of the French Frigate Shoals.  The Turtle Islands of the Philippines and the Meru Betiri National Reserve in East Java, Indonesia boast healthy populations.  Green turtles are scattered throughout the Great Barrier Reef, but exist in high concentrations around Raine Island.  The waters around Madagascar support Africa’s population of green turtles.  The Arabian Sea also attracts the turtles, especially in Ash Sharqiyah, Oman and Karachi, Pakistan.  In the same area, the waters surrounding Astola Island, a large nesting site, have plenty of green turtles to fill your bottom time.

    The Vandenburg

    The Vandenburg

    There is more to Key West than dive bars.  Most people don’t realize that one of Florida’s biggest party towns actually has a lot of scuba options if you can stay sober long enough to seek them out.  Key West’s largest and most pristine reefs are located several miles off shore, making a dive boat a must.  Those willing to venture a little further still can also enjoy the dive opportunities in the Lower Keys, especially pristine Looe Key Reef, a protected site teeming with sea life that know nobody is going to eat them.  Interesting sites include:

    Looe Key Reef – The coral reef of Looe Key has been afforded special protection since 1981. Since then, all spearfishing, coral collection, and even lobstering have been banned there.  The site’s namesake, the frigate H.M.S. Looe, accidentally ran hard aground there in 1744; remains of the ship lie between two fingers of coral near the eastern end of the reef although only the ballast and anchor are visible.  One unusual aspect of Looe Key is that a complete reef ecosystem is found there, from a rubble ridge of ancient fossilized corals, to a reef flat comprised of turtle grass, to a fore reef made up of large star and brain corals arranged in a spur-and-groove coral formation sloping from 20 to 40 feet. There is even a deep reef which slopes to more than 100 feet, providing a great opportunity to view the pelagic species of the Florida Keys, including eagle rays, turtles and every once in awhile a whale shark or manta ray.  But don’t miss the main attraction looking for big game: more varieties of tropical marine species are found at Looe Key than perhaps anywhere else in the hemisphere, placing most of the of action right in front of your mask. 

    Adolphus Bush – This former island freighter was purchased by the local dive community with the generous assistance of Adolphus Busch IV, and sunk upright and intact in just 100 feet of water some seven miles southwest of Big Pine Key in December 1998.  Before sinking, the ship was well cleaned and prepared for divers, including the opening of several large holes for penetration. The ship is 210 feet long and the maximum depth is 110 feet, making it an Intermediate to Advanced level dive.  There is some marine growth on the wreck, but the highlight is the ship itself, as well as the schools of fish that are starting to use it as a playground.

    Sand Key – From the surface, Sand Key looks like a pile of shells topped with a jaunty red lighthouse hat.  But, underwater the view gets much more idylic.  The reef itself consists mostly of rock fingers and gullies with sandy bottoms between cliff-like structures and extensive areas of staghorn and elkhorn coral.  This site reaches to 65 feet and teems with endless expanses of colorful tropical fish and macro photography opportunities.  Though popular, this location is so large that dive boats can spread out, and fish always outnumber divers.

    Alexander’s Wreck – commercial salver Chet Alexander purchased this ship from the Navy and sunk it to form an artificial reef.  The wreck lies on its side and is broken in half, with the stern section lying 150 yards or so north of the bow, which is awash on most tides.  The hull is covered with Leavy oysters and the surrounding waters teem with what seems like unending schools of tropical fish.

    Joe’s Tug – This classic tugboat sits totally upright in just 65 feet of water, and offers a great opportunity for close encounters with Goliath Grouper, spotted morays, barracuda, and horse eye jacks.  Open access to the wheel house and aft deck make this an enjoyable dive.

    The Cayman Salvor -This 180-foot. steel hulled buoy tender, also known as the Cayman Salvager, was intentionally sunk as an artificial reef in 1985. She now sits upright with cavernous open holds providing refuge for baitfish and grunts, as well as a resident jewfish and green moray eel.

    Hoyt S. Vandenberg – So, how long to do you plan on staying in the Keys to dive?  At 523 feet in length and 10 stories high, the Vandenberg, the Key’s most famous artificial reef, will take you some time to explore.  Vandenberg sits upright approximately seven miles off Key West in the Florida Keys National Marine Sanctuary, its keel buried at 145 feet. The tops of the bridges, the communication center and the ship’s dish antennas are 40 feet from the surface of the water, perfect for beginning divers or deco stops. All dive spots along the top structure are open, free from obstruction and are easy to maneuver over and around during a dive.  The decks are 45 to 90 feet below the surface. There are holes cut measuring 8×10 feet on each side to allow divers to penetrate the decks horizontally. There are 18 stair towers, 11 elevator shafts and cargo hold shafts to give divers vertical access to the wreck. The 25 foot tall rudder and prop is a great deep dive at 150 feet for the advanced diver.

    Since being sunk to the bottom in under two minutes’ time on May 27, 2009, the second-largest ship in the world to be sunk as an artificial reef sits encrusted with species of soft corals.  Some 48 different species of shallow water and reef fish have taken up residency, such as parrotfish, goliath grouper, yellow and blue tangs, barracuda as well as deeper water dorado and the occasional sailfish attracted by clouds of bait that frequently school around the wreck. Gray angelfish and butterfly fish are routinely seen circling the anchor chain, while arrow crabs treat the whole thing like a jungle gym.

    Larry, the vindictive lobster

    Larry, the vindictive lobster

    When I think of Florida’s oceans, I think of yellow sugar sand beaches, blue crystal clear water, and red sunburned tourists.  Little did I know that the Sunshine State is also a great place to die while diving (or snorkeling).  I recently read an article on CDNN, the Cyber Diver News Network, which highlighted the unbelievable number of scuba deaths so far in 2009 in Florida.  CDNN cited 24 scuba/snorkeling related deaths by July 30 of this year, which made me wonder: what the heck happened to all of these people?  A summary:

     

    Ways to die while scuba diving in Florida

    Killer Crustaceans – Spiny lobster fishing season only lasts 2 days, but claims at least one death per year.  This year it took two.  Makes you wonder if the lobsters, who were in mourning for cousin Larry (not seen since last lobster fishing season,) embraced the revenge business this year.

    Deadly Decompression – I’m not sure where these folks learned to scuba dive, but clearly the chapter on ascent rates and safety stops was ripped out of their training manual before the class started.  Decompression sickness claimed several lives already this year.

    Only the Lonely – Are people who visit Florida antisocial?  An inordinate number of people seem to want to dive, and die, alone.  A killer argument for why you should always dive with a buddy.

    Wet Willie – There seems to be a misconception that armed with a snorkel or a scuba rig one can forgo the need to know how to swim or approach raging currents with abandon.  Drowning seems to be a problem in Florida as well. 

    Hey!  You Ran Me Over! – Blind Boater Crossing: Divers beware.  Several divers and snorkelers met their end by meeting boats head on.  Again, it’s a killer argument for carrying a safety sausage, salami, or other life-saving lunchmeat.

     

    Though I jest, this is really a serious subject.  Just a reminder on the life-saving benefits of common sense, solid skills, and a little scuba humility.