Mysterious Skull Island: A place where tourists can only see but not set foot

Lying off the rugged coast of Victoria, this strange island remains a mystery to this day .

Wilsons Promontory National Park , the southernmost point of mainland Australia, is home to a spooky, isolated island that from a distance resembles a giant skull.

Surrounded by the temperate waters of Bass Strait, the island's sheer size and rugged frontage make for a breathtaking sight.

Surrounded by clear blue waters and guarded by thousands of seals, the mysterious and unspoiled island lies peacefully off the rugged coast.

Countless visitors have been captivated by the large caves, unique cliffs and overall beauty of Cleft Island, commonly known as Skull Rock .

Skull Island is one of the most beautiful of all the islands in Wilsons Promontory National Park.

Measuring 130 metres long, 60 metres high and 60 metres deep, one guide said the island is so large it could engulf the Sydney Opera House. From certain angles, the island resembles a skull , hence the nickname Skull Island.

The island has an elongated shape with a giant opening in the middle, and what lies inside the island's vast caves and the rest of it remains a source of excitement for many adventurous travelers.

The island impresses with a large hole.

Visitors can peer into the dark recesses of Skull Island from a boat, but anchoring and exploring the island is a difficult challenge due to the fast-moving water and series of vertical cliffs .

Several explorers successfully explored Skull Island after being dropped off by helicopter. The explorers discovered a large cave lined with lush green grass, nesting birds, a few seals, and several rusted cannons that historians speculate were fired by passing ships.

The mouth of the cave has a magnificent green carpet.

According to records , only nine people have successfully entered the cave so far . Meanwhile, the western part of the island, which is practically inaccessible, is the biggest attraction.

To date, only nine people have successfully explored inside the island's caves.

Divers have discovered the remains of several ships that unfortunately collided with Skull Island. Sharp-eyed divers may even spot an actual skull in the depths near the base of the island.

The rest of the island is inaccessible and remains a mystery to this day.

A new tour service has allowed visitors to get close to the island on a purpose-built boat that plows across the Bass Straight waters, which also gives visitors a fresh perspective on the park.