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Top 7 Mysteries Hidden Under the Ocean!


mysterious island,top unexplained and mysterious things, mystery spot

The ocean covers around 70 percent of the earth. Most of this is inaccessible to humankind. But because scientists and sea researchers exist, mysterious stuff gets discovered from the sea. These things are unexplained and a mystery of history.

Here are the top unexplained and mysterious things found in the boundless ocean. Nothing is left undiscovered, whether it's a mysterious island, mystery spot, or mystery lake map.


In 2014, Ice balls weighing up to 22 kilograms each, about the size of a basketball, were washed up on the shores of Lake Michigan. They were clumped together and rolled with the motion of the waves at the beach.

Ice balls were not uncommon in winter in that area, but these balls' abnormally large size made them very unusual.

The cause of these ice balls is still unidentified. It is yet a mystery spot.


The Lost City Of Heracleion can be described as a mystery or sunken mystery island. In 2000, an archaeologist, Frank Goddio, finally found the submerged city. Frank spent years on this mystery island. He already had an idea that the city would be off the coast of Egypt.

Before discovering this mystery of history, the ancient city of Heracleion was just a passing mention in very few and rare ancient texts or inscriptions. The mystery island was an actual mystery before its discovery.

With the help of advanced underwater screening technology, Frank located the sunken mystery island. It was submerged 6.5 kilometers off the coast. The ruins of 64 ships, 700 anchors, caskets full of gold coins, and statues about 16 feet tall were discovered in this mystery spot.


The Mexican Sinkhole is regarded as a mystery spot. Sac Uayum is a cenote in the Yucatán Peninsula in Mexico. The locals of this place were terrified in fear around the year 2012.

A team of sea divers finally found the reason behind its bad reputation. Two chambers with human bones and deformed skulls were found during the underwater survey. National Geographic explains it is most likely that the heads got there because of some human sacrifice rituals.

The deformation of the skulls signaled the method of deformation practiced by the ancient Maya. Even though things are pretty straightforward, the mystery spot is a mystery.



A river under a sea, isn't that shocking? The mystery spot is situated under the black sea itself.

In 2016, a river 350 times greater than the River Thames was found flowing under the sea beds of the black sea.

An underwater robot was used to study the river. Scientists from Leeds University found that the river is 115ft deep in some places and even had rapids and waterfalls, just like typical rivers.

If this river were placed on land, it would rank sixth worldwide for the enormous water volume that flows through it.


It's not a mystery island, a mystery spot, or a mystery lake map, yet, these letters are enough to grant you goosebumps. It's the most and only wholesome mystery of history on this list.

A person named Kathleen Chaney, situated in New Jersey, discovered 57 love letters in 2012. The letters were stacked together, with a pink ribbon around them inside a box. They were found on the shore of Sandy Hook Bay.

The letters were written between 1942 and 1947 and were conversations between Dorothy Fallon and Lynn Farnham. Kathleen tried to return the letters to their original owners, but tracking them after so many years was challenging. However, Kathleen was able to find the couple's niece.


In July 2017, thousands of clump, yellow and sponge-like stuff that seemed like wax washed up at France's Opal Coast. The mysterious balls smelled of paraffin, but the substance was found to be paraffin wax after the analysis. The tests were done at the Cedre Association, which specializes in testing hydrocarbon pollutants.

It was later confirmed that some ship might've dropped the paraffin wax residues into the sea near the shore. The vessel can dump limited amounts of paraffin wax residue into the sea, but it should be done far from shore.



In 2018 an incredible and shocking discovery was made by archaeologists. More than a mile below the surface of the Black Sea, a 2,400-year-old Boat was found on the Bulgarian coast, the world's oldest shipwreck.

According to The Guardian, the boat was found in a well-preserved state and is estimated to be around 2,400 years old. It contains an ancient Greek vessel that stands 23 meters long. This mystery of history makes you wonder about the past, doesn't it?

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