King tides are a natural phenomenon that occur when the Earth, the sun and the moon align in a very specific way. As their name implies, these tides are considerably higher than your average high tide and they redefine the shorelines of the US, Australia, New Zealand and other countries for a brief moment every January.

Organizations like California King Tides Project are documenting the high water levels of the upcoming days. Their goal is to raise awareness of the impacts of future sea level rise due to climate change on coastal communities.

Scientists predict a sea level will go up between three and six feet by the end of the century. Since this year king tides will be joined by El Niño, chances are they’ll come close to those same numbers and we might get a glimpse of how our coastlines will look in the not so distant future… during low tide, of course.