The crew of the Maiken was sailing the South Pacific when they spotted an unusual shadow.
As they got closer, what they had taken to be a sandbar revealed itself to be something else entirely.
A huge amount of pumice stone was floating to the surface of the water. It looked like a beach.
They decided to get a closer look and redirected their yacht towards it.
It looks like a beach in the middle of the ocean!
The crew decided to sail through it, leaving a break in the stone behind them as they went.
They wondered what could have caused this expanse of stone to suddenly appear.
The field of pumice was getting even larger as they passed through it. The crew had an uneasy feeling and upped their speed.
Once they were a safe distance away, they heard a faint rumbling. Looking back they saw water bubbling from the surface.