Oarfish are rarely documented by scientists, but one was seen this month by a group visiting a beach in Mexico.

On Feb. 9, beachgoers captured a video of a rare “doomsday” oarfish on the shores of Baja California Sur, Mexico. According to USA Today, this shimmering serpent is a sign of impending doom in Japanese folklore. The video shows the ribbon-looking fish swimming through the clear waters up to the shore, where witnesses surround it.

A group of beachgoers made a rare sighting when they found an oarfish swimming alongside a beach in Mexico. The water animal, known as a "doomsday fish," was spotted at Playa El Quemado in Baja California Sur on Sunday, Feb. 9, per Men's Journal .