When it is high tide on one side of the Earth, the opposite side of the earth experiences

low tide. This is due to the gravitational pull of the moon and the sun on the Earth's oceans. When the moon is directly overhead or on the opposite side of the Earth, it exerts a gravitational force on the water, causing it to bulge and create a high tide. On the other hand, the areas perpendicular to the moon experience a low tide, where the water level recedes. This is often referred to as the tidal bulge or the tidal hump.