Gunung Jerai, formerly Kedah Peak, is a mountain in Kedah, Malaysia with the height of 3,854 feet (1,217m), also the ranked 148th highest mountain in Malaysia.  The mountain is a massive limestone outcrop and is a lone feature from the surrounding geography of the area. There is an information board on top of the mountain stating that it used to be an island called Pulai Serai before the sea levels receded letting it form a mountain.