If you thought crossing oceans on flimsy, homemade vessels was a daring feat, you’ve only glimpsed the most absurd maritime adventures that have ever been attempted.
Most Absurd Maritime Experiments
From rafts that fell apart under the bite of tiny mollusks to a boat built entirely of wine corks, these voyages push the boundaries of sanity, engineering, and common sense. Buckle up as we sail through ten of the wildest modern sea escapades.
10 Tahiti Nui I (1956)
In the late 1940s, Thor Heyerdahl sparked a craze of experimental ocean‑crossings, but French sailor Eric de Bisschop wasn’t buying into Heyerdahl’s Peruvian‑to‑Polynesian theory. De Bisschop imagined a massive Polynesian sphere that stretched all the way to Chile, so he built a bamboo raft and set sail south of the 40th parallel, into the notorious “Roaring Forties.”
Experts called the route practically suicidal, yet the raft survived the ferocious southern winds and performed admirably—until a legion of termite‑like mollusks called teredos began gnawing through the hull. After 199 days at sea, the vessel started sinking and the crew radioed for rescue a mere 240 km off the South American coast.
Undeterred, de Bisschop returned the next year with a second raft constructed from cypress logs, determined to prove his theory once more.
9 The Seven Little Sisters (1954)
William Willis, a 61‑year‑old adventurer with no grand academic agenda, decided to test his aging body against the Pacific by solo‑sailing a massive balsa raft from Peru to American Samoa. Early in the 10,800‑km trek, his freshwater supply became contaminated, forcing him to survive on rainwater, raw flour, condensed milk, and even occasional sips of seawater.
A freak storm hurled a 2.7‑meter shark onto the deck. Willis wrestled the predator back into the ocean, but not before the shark sliced an artery in his forearm—a wound he somehow managed to stitch himself.
Adding insult to injury, his beloved cat kept being tossed overboard. Each time, Willis dove into the raging Pacific without rope or life preserver to rescue the feline companion.
Miraculously, Willis, his cat, and the massive raft reached American Samoa intact, traveling 3,200 km farther than Heyerdahl’s Kon‑Tiki. At age 70, Willis later repeated the feat, sailing from South America to Australia—a staggering 17,700 km journey.
8 Ra II (1970)
Thor Heyerdahl wasn’t content with a single successful experiment. After his Pacific crossing, he turned his attention to the Atlantic, aiming to prove that ancient Egyptian papyrus vessels could handle open‑sea voyages.
The first attempt, Ra I, fell apart when the reed‑built hull took on water and broke apart. Undeterred, Heyerdahl collaborated with Bolivian raft makers from Lake Titicaca to construct Ra II, a sturdier papyrus reed ship.
Ra II triumphantly sailed from Morocco to Barbados—covering 6,450 km in just 57 days—demonstrating that such a fragile‑looking craft could survive the high seas far longer than scholars had predicted.
7 The Acali (1973)
Eleven strangers were plucked together to live on a 12 × 7‑meter raft, turning the vessel into a floating laboratory for sociologist Santiago Genovés. The goal? To observe human behavior in a confined, isolated environment.
Over a 101‑day trek from the Canary Islands to Mexico, the crew endured attempted suicides, serious illnesses, hurricanes, and shark attacks. As boredom set in, the raft morphed into a floating orgy, with volunteers experimenting with various sexual arrangements.
Genovés compiled over 8,000 questions and responses, creating a massive ethnological record. The experiment pre‑dated reality‑TV social experiments, earning a tongue‑in‑cheek nod to shows like “The Real World.”
6 Excalibur (1981)
Couple Curtis and Kathleen Saville set out to row across the Atlantic in a 7.6‑meter craft named Excalibur. A storm pushed them off course into the war‑torn waters off Spanish Sahara, but once they reached open ocean, the tiny vessel proved perfect for their scientific mission.
Excalibur’s low profile allowed waves to crash over the deck, giving the Savilles a front‑row seat to bioluminescent organisms. They recorded far more glowing marine life than land‑based researchers had ever documented.
After 83 days of near‑constant rowing, the pair safely docked in Antigua, having contributed valuable data on oceanic bioluminescence.
5 The Phoenicia (2007)
Herodotus claimed that Phoenician galleys circumnavigated Africa in the 6th century BC, a feat not replicated until 1488. To test this legend, fund manager‑turned‑adventurer Philip Beale commissioned a replica built to the exact specifications of a recently uncovered Phoenician galley wreck.
The ship featured no modern winches or pulleys—only a tiny auxiliary engine for harbor maneuvers. As a result, The Phoenicia handled like a bathtub: nine rudders broke, a storm ripped the sail in half, and the crew of 11 spent countless hours bailing water.
After two years and over 17,000 miles—including a perilous passage through the pirate‑infested Gulf of Aden—the crew finally completed the circumnavigation, proving that ancient Phoenicians faced monumental challenges on such voyages.
4 Cork Boat (2002)
John Pollack, a former presidential speechwriter, set out to build a vessel entirely from wine corks—165,321 of them—to prove that a cork‑only boat could actually sail.
After two years of planning, testing, and painstakingly lashing the corks together with a clever netting system, the resulting Viking‑style longboat was buoyant yet as unwieldy as a “hippopotamus.” The Cork Boat’s journey took it through Portugal’s cork‑rich terrain before it finally reached the sea.
Pollack and a crew of volunteers rowed down the Douro River for over two weeks, receiving occasional tow assistance through the river’s locks. The cork‑laden craft arrived at the Atlantic largely intact.
3 Starkell’s Canoe (1980‑1982)
Don Starkell claimed to have paddled more miles than any other man in history, and his 12,000‑mile canoe trek backs up that boast. Beginning in Winnipeg in 1980 with his two sons, the trio set out in a 6.4‑meter open canoe.
The journey threaded through the Red River, the Mississippi, the Gulf of Mexico, the Orinoco, and finally the Rio Negro, ending at the mouth of the Amazon River. Along the way, they faced snake bites, shark encounters, Nicaraguan rebels, drug runners, and Honduran robbers—far more dangerous than the water itself.
Thirteen countries, 45 border crossings, and at least 15 capsizes later, the Starkells arrived in Brazil. Guinness World Records recognized the expedition as the longest canoe trip ever recorded.
2 Lehi IV (1958)
In the 1950s, Devere Baker, inspired by the Book of Mormon, built a series of rafts to prove that ancient Israelites could have sailed from the Red Sea to Central America. After three failed attempts, his fourth raft—Lehi IV—finally floated, albeit without any steering capability.
Baker charted a course from Redondo Beach to Hawaii, a route that had little to do with his biblical hypothesis. Luck, favorable winds, and a small crew of college students kept the vessel afloat, and a Coast Guard cutter eventually towed the craft to shore.
While the voyage added nothing to anthropology, Baker’s wife chronicled the adventure from the perspective of the family dog, cementing the story’s quirky legacy.
1 Tahiti Nui II‑III (1958)
After the initial failure of Tahiti Nui, Eric de Bisschop refused to surrender. He constructed a new raft from cypress and balsa logs and launched from Chile, aiming for Polynesia.
Two months in, the raft sank 20 cm, then a full meter by the end of June, forcing the crew onto the cabin roof. The culprit? Teredos—a relentless mollusk that chewed countless holes through the logs.
With supplies dwindling and fever taking hold, the crew began plotting solo escapes. By August, the raft was barely afloat, prompting de Bisschop to fashion a smaller vessel—Tahiti Nui III—using the few remaining sound logs and water barrels.
The makeshift craft measured just 1.5 × 1.8 m, but it stayed afloat. The crew clung to it as it tossed through rough seas, eventually reaching the Cook Islands. Tragically, de Bisschop did not survive the raft’s wreck on a reef, but his ingenuity saved his companions.