Oahu AKA “The Gathering Place” is the third-largest island of Hawaii. Almost 1 million people reside here on this beautiful and mysterious island. There are two volcanoes in Oahu, the Wai’anae and Ko’olau Ranges that shields the islands. And without a doubt, these are the places you must visit once in your life. Tourists can enjoy the sight of beautiful volcanoes, but historians can learn some interesting things about Hawaiian history. The history which was hidden for 400 years was now out in front of the world.