Ball's Pyramid is a unique natural formation located in the Tasman Sea, around 20 kilometers southeast of Lord Howe Island, Australia. It is a volcanic stack, the remnant of a shield volcano, and is considered to be the world's tallest volcanic stack.

The pyramid rises to a height of 562 meters, with steep, sheer cliffs on all sides. It is a remnant of an ancient volcanic vent, with the top of the stack having eroded away over millions of years. The pyramid is uninhabited, except for a small population of seabirds that use the cliffs as nesting sites.

The waters surrounding Ball's Pyramid are home to a diverse range of marine life, including numerous species of fish, sharks, and other sea creatures. The pyramid is a popular destination for divers and snorkelers, who come to explore the rich marine ecosystem and the underwater caves and grottos that surround the stack.

Despite its remote location and rugged terrain, Ball's Pyramid has become an iconic natural landmark, attracting visitors from around the world who come to marvel at its unique beauty and explore its surrounding waters.