Flexi Says: A land bridge forms when dry land connects two land areas that are normally separated by water. This can happen when sea level drops during a marine regression. Examples include the Bering land bridge, which connected Asia with North America when the sea level dropped in the ice age. Rama Setu (sometimes known as Adam's Bridge) is a more recent land bridge connecting India and Sri Lanka. By some accounts, it was passable by foot until the 15th century. Storms have since deepened the water in some parts of the land bridge, although others are still dry or very shallow.