Adventures of a Sea Hunter (7 page)

The blast also created “atomic tidal waves.” The first wave, a 94-foot wall of radioactive water, lifted and crashed into the aircraft carrier
Saratoga
with such force that it twisted the hull. The falling water also partially smashed the flight deck, and
Saratoga
sank within seven and a half hours.
Nagato
, its hull broken open, sank two days later. Beneath the water, the immense pressure of the bomb’s burst crushed three submarines that settled onto the seabed, leaking air bubbles and oil.

On the surface, a boiling cloud of radioactive water and steam penetrated the surviving ships. Radioactive material adhered to wooden decks, paint, rust and grease. For weeks after the tests, the Navy tried to wash off the fallout with water and lye, sending crews aboard the contaminated ships to scrub off paint, rust and scale with long-handled brushes, holystones and any other “available means.” In August, worried about radiation, Admiral Blandy cancelled plans for a third test and gave orders to sink badly damaged ships. As Operation Crossroads steamed away from Bikini, it towed the battered, irradiated fleet of targets to nearby Kwajalein, and then to Pearl Harbor, Bremerton in Washington, and Hunter’s Point and Mare Island in California. There, sailors stripped the hulks of ammunition and left them to rust.

Starting in 1948, the Navy began taking the Crossroads target ships to sea and sinking them. The explanation was that the sinkings were part of training exercises and tests of new weapons. That year, Dr. David Bradley, M.D., a radiological safety monitor at Bikini, published his journal of the tests in a book titled No
Place to Hide.
It stayed on the
New York
Times
best-seller list for ten weeks. No
Place to Hide
was a forceful book that told the “real” message of Bikini. According to Bradley, Operation Crossroads, “hastily planned and hastily carried out… may have only sketched in gross outlines… the real problem; nevertheless, these outlines show pretty clearly the shadow of the colossus which looms behind tomorrow.” Bradley’s metaphor was the target ships rusting at Kwajalein, many of them seemingly undamaged but “nevertheless dying of a malignant disease for which there is no help.”

The “cure,” being enacted as Bradley’s book was printed, was to sink the contaminated ships. In February 1949,
Washington Post
columnist Drew Pearson called the tests a “major naval disaster.” He reported that “of the 73 ships involved in the Bikini tests, more than 61 were sunk or destroyed. This is an enormous loss from only two bombs.” Pearson, like Bradley, pointed to what he viewed as a military effort to keep the true lesson of Operation Crossroads—the virtual destruction of the target fleet by radioactivity—from being fully apprehended by the public. Although the story had ultimately leaked out, it was downplayed by the government, and the credibility and patriotism of those who spoke out was questioned.

I traveled to Bikini as part of Dan Lenihan’s National Park Service team in 1989 and 1990. Lenihan, Larry Nordby, Larry Murphy, Jerry Livingston and I were the first to visit most of the wrecks since Operation Crossroads, and we were undertaking the survey at the request of the U.S. Department of Energy and the Bikini Council. The Bikinians, in their exile on the remote island of Kili, far away from their contaminated homeland, were eager to work with the Department of Energy to see if the sunken “swords” could be transformed into tourism plowshares. The National Park Service had the government’s only team of diving archeologists at the time, and our park-oriented approach was not at odds with tourism. Since I was the
NPS
maritime historian, I easily wrangled my way onto Dan’s crew. As well, my proximity to the
National Archives and my love of research meant that I could do advance work to learn about the history of the ships and the tests, and thus help the team to figure out just what we would be seeing in the blue depths of Bikini lagoon.

In 1989 the U.S. Navy did a magnificent job of surveying the lagoon’s 180-foot depths to relocate the sunken ships of 1946. There was no chart documenting the location of the wrecks, so the Navy started with nothing but the generally known location of the aircraft carrier
USS
Saratoga
, whose mast rose to within 50 feet of the surface and whose grave is marked by oil leaking from its fuel tanks. Our first dive at Bikini was on
Saratoga.

Anchored over the wreck of
USS
Saratoga
, we bob in the slight swell as each diver checks his gear under the blazing hot sun. Rolling backward into the water is a welcome relief. Clustered together like a group of skydivers, we fall in unison onto
Saratoga.
The carrier is huge, its 900-foot length the largest thing I have yet seen underwater. The superstructure towers above the flight deck, and in the clear water, it feels as if we are flying down the side of a tall building. Open hatches and deadlights invite inspection, but for now, we focus on the gaping maw on the hangar deck. Landing on the flight deck, we pause, and then one by one, drop down farther into the hangar. The flight elevator, bent and collapsed, lies at the bottom of the huge shaft. I turn left and head into the dark cavern of the hangar, following Dan and Murphy’s lights.

Lying on the deck is a rack of 500-pound bombs. Wedged beneath their noses is a smaller depth bomb. I suck in a little more air and, inflating my lungs, float just a little higher to avoid going near them. The deck below me is covered with silt, and I try not to stir it up. In the distance, I notice that Dan and Murphy’s lights have stopped moving. As I swim up, I see why. They have halted at a plane. Sitting upright on its wheels, wings folded up for storage, is a Helldiver, a dive bomber introduced late in the war. The cockpit is open and the gauges on the pilot’s panel are clearly visible. The plane is ready to roll out onto the

James Delgado and Dan Lenihan drop down to the wreck of
USS
Saratoga
at Bikini Atoll. © Bill Curtsinger

elevator, rise to the flight deck and be readied for combat. If that is not exciting enough, there are two more intact planes in a row behind the Helldiver.
Saratoga
carried planes on the deck and in the hangar when the atomic blast sank her on July 25, 1946. Since the flight deck above us is largely empty, the survival of these planes in the hangar is something we had not envisioned. Rather, we had figured that being picked up and flung across the water by a nuclear tidal wave had smashed everything inside
Saratoga.
Not so, and as if to underscore this fact, Dan floats up to a row of unbroken light fixtures.

We move on to a hole punched through the flight deck. Rising up through the hole, we pass scattered equipment lying on the deck and look for the lines dangling from our dive boat. We hang there, above the wreck, decompressing to quiet down the gas in our blood and prevent the bends. We are many miles away from a decompression chamber, so we’re being careful to avoid a dive accident that could cripple or kill us. Bikini is a challenging dive location, to be sure. There are the unexploded bombs, and the fear of residual radiation. And there are the risks of entering rusting hulks that might collapse on us. In addition, the ships are artificial reefs that attract hundreds of potentially aggressive white tip sharks. Then there’s the greatest danger, the depth. The wrecks lie on the bottom of a 180-foot-deep lagoon, with the shallowest depth at
Saratoga’s
multistory hull as it rises up from the seabed. These are beyond the limits for most divers, particularly when using regular air and not a mixed gas. In 1989–90, our team breathes regular air, all that is available at our remote location, and we decompress with pure oxygen to scrub our blood clear of the nitrogen bubbles that build up on long dives.

Thankfully, no one gets the bends, though we have a few close calls. One dive team member runs out of air and nearly panics until another diver assists with a spare regulator from his tank. A few days later, I carelessly go too far, fascinated by a deck full of test equipment, and turn back dangerously low on air. I make it back to the decompression line with an empty tank and the reminder that as fascinating as wrecks are, you can’t appreciate them when you’re dead.

Fortunately, the bombs turn out to be no danger at all. A Navy team disarms a bomb that looks menacing, and later I learn from the archives that the bombs carried by
Saratoga
were filled with plaster, not explosives. If marine growth and corrosion had not covered the bombs, we might have seen the stenciled message that I find on the photos of the tests—rows of big bombs marked “
INERT
.” But the sharks can be aggressive, as we discover when we get too close. They are not “Jaws” size, but they can still tear out a big chunk of flesh, so we usually avoid them. One day, a shark gets too close, but I lash out and punch him in the gills, a sensitive spot. It hurts and he backs off—as do I. Another time, a shark swims by and rips into a fish, tearing it in two. He glares at me, half a fish dangling from his mouth, as if he’s daring me to try and take it. “No, go ahead,” I mumble in my regulator. “It’s your fish.”

The only other close call on
Saratoga
comes years later, on a dive with Fabio Amaral, as we probe a passageway inside the wreck during a Discovery Channel filming expedition. Dropping down
Saratoga’s
small bomb elevator, we make our way to a hatch that we are able to squeeze through, into a long corridor running off into the darkness. Fabio has been here before and laid down a line to guide us back should the silt stir up. We follow the line to deep inside
Saratoga.
More than halfway down, we stop in alarm at the sound of a loud bang behind us. When I look back, my lights pick up a wall of silt racing towards us. Fabio and I grab each other by the shoulder and go mask to mask as the silt washes over us, blacking out the corridor. The powerful glow of our lights is useless in the turbid, muddy water. Holding my light up to my face, I can just make out Fabio’s eyes, wide open and doubtless a mirror of my own fear. Dive training takes over, though, and we grope for the line. Slowly tracing it with our fingers, we move back until we reach a mass of fallen rusty steel. The deck above us has collapsed, burying the line and probably trapping us inside the sunken ship.

Then we both get an inspiration. The deck above us has fallen down, but that means another corridor has opened up. We slowly rise up out of the cloudy silt and find ourselves in a murky but clearer passageway. Following it, we come up to a sealed hatch that must lead into the bomb elevator. Straining against rusty hinges, we push it open to find ourselves floating above a mess of bombs at the bottom of the elevator. After a “thumbs up” sign, we swim straight up and out, breathing a sigh of relief.

Larry Murphy approaching the wreck of the Japanese warship
Nagato
at Bikini Atoll. Dan Lenihan, National Park Service

The thrills of a close escape, however, do not compare with the emotional impact of looking at these historic ships and the dramatic damage wrought by the atomic bomb.
Saratoga
has a huge dent in the flight deck caused by the falling column of water and silt thrown out of the lagoon by the bomb. It’s just one dent, but it’s a big one: 230 feet long, 70 feet wide and 20 feet deep. It looks like Godzilla stomped on the flight deck. The battleship
Arkansas
, a quarter mile away, is in even worse shape. The armored hull is upside down, warped and smashed nearly flat. A hundred feet of superstructure, masts and turrets lie buried in the coral sand, with only several feet of clearance between the main deck and the seabed. The force of the blast flipped and smashed
Arkansas
, then hammered her down with such violence that she is
nearly one with the bottom of the lagoon. The attack transport
Gilliam
is something else altogether. Caught in an atomic fireball and swept by extreme temperatures equal to those on the surface of the sun, the ship has partially melted. It looks like a child’s plastic toy left out on a hot sidewalk, thick steel drooping and deformed. A bulldozer from the ship’s deck, tossed off by the blast, lies nearby with its thick blade twisted into an “S” by the heat.