Twice a year, for little more than an hour, the sea in South Korea performs what many first-time visitors can only describe as a miracle.
As the tide slowly retreats, a narrow ribbon of land rises from beneath the waves, connecting Jindo Island—the country’s third-largest island—to the tiny islet of Modo. Stretching for approximately 2.8 kilometers (1.7 miles) and measuring just 10 to 40 meters wide, this temporary pathway exists only briefly before the ocean returns to reclaim it.
Watching hundreds, sometimes thousands, of people walking across what was open sea just moments earlier is a surreal sight. It feels less like a natural event and more like stepping into an ancient legend.
The phenomenon occurs only a few times each year, typically between March and June, when the alignment of the Sun and Moon produces exceptionally low tides. Combined with the unique shape of the seabed and centuries of sediment deposition, the receding water exposes a natural causeway that remains accessible for less than an hour. There is no supernatural force at work—only the remarkable precision of celestial mechanics and coastal geology.
Yet knowing the science hardly diminishes the wonder.
The comparison that inevitably comes to mind is the biblical story of Moses parting the Red Sea. So striking is the resemblance that French ambassador Pierre Landy, after witnessing the event in the 1970s, famously described it as “South Korea’s Moses Miracle.” The nickname spread rapidly through international media and remains one of the event’s most recognizable titles today, even though the phenomenon has nothing to do with the biblical account.
Long before international visitors arrived, however, the people of Jindo had their own explanation.
According to local folklore, the island was once plagued by fierce tigers that terrorized its inhabitants. Forced to flee to neighboring Modo Island, the villagers accidentally left behind an elderly woman named Bbyong. Alone and desperate, she prayed every day to Yongwang, the Dragon King of the Sea, begging to be reunited with her family.
One night, the Dragon King appeared to her in a dream and promised that the sea would open. The following day, the waters divided, revealing a dry path across the ocean floor. Her family crossed safely to rescue her, and ever since, the miraculous event has been celebrated as a symbol of reunion, hope, and divine compassion.
Whether historically true or not, the legend remains deeply woven into the identity of Jindo, adding an emotional layer to an already extraordinary natural spectacle.
Today, the event is celebrated during the annual Jindo Sea Parting Festival, when visitors from around the world gather to witness the phenomenon firsthand. As the water retreats, people carrying colorful flags and wearing waterproof boots make the journey across the exposed seabed. Some search for shells, crabs, octopuses, and seaweed left behind by the tide, while others simply pause midway to absorb the surreal experience of standing where the sea had been only minutes before.
Timing is everything. The window to cross is surprisingly short, and the returning tide can rise quickly. Festival organizers carefully monitor tidal conditions, guide visitors along the safest route, and signal when it is time to head back before the ocean quietly closes the passage once again.
Jindo itself is worth discovering beyond the famous sea crossing. The island is renowned for the intelligent and fiercely loyal Jindo dog, designated one of South Korea’s national treasures, as well as for its dramatic coastline, traditional music, and rich maritime culture. For many travelers, the temporary road across the sea becomes just the beginning of a much deeper encounter with one of the country’s most fascinating regions.
Around the world, similar tidal pathways exist in places such as Mont Saint-Michel in France, St. Michael’s Mount in England, and Cramond Island in Scotland. Yet few create the same sense of collective wonder as Jindo, where thousands of people witness an entire stretch of ocean quietly disappear before their eyes.
For a brief moment, the boundary between land and sea, myth and reality, science and imagination seems to dissolve.
Nature, sometimes, writes stories that sound like legends.
Images from web – Google Research