Rogue Wave is large, unexpected, and sudden surface waves. It is more than twice the height of the waves around it. They can be very dangerous even for big waves. Only a few rogue waves in high sea states have been observed directly, and nothing of this magnitude. The most extreme rogue wave ever recorded on Vancouver Island in British Columbia. According to scientists, the wave from Vancouver Island in 2020 was a 'once in a thousand years' event. Rogue waves are sometimes referred to as freak or killer waves and can be extremely dangerous due to their unexpected and superficial power.