Years ago... gigantic volcanic eruptions formed a great range of mountains in the middle of the North Pacific, just below the tropic of cancer. Some of the mountains rose out of the ocean depth and formed the Hawaiian Islands.When visiting Hawai'i, you should try and visit at least 2 of the 5 principle islands, each of which is full of its distinctive beauty and characteristics.. Oahu - "The Capitol Island" skyscrapers line along the world-famous Waikiki Beach in this city, Hawai'i - "The big island" as it is the largest of all the Hawaiian islands, Kuaui - "The Garden Island" as this island is covered with lush, green vegetation and Maui - "The Valley Island". You have not lived until you have seen Hawai'i.