Oahu is one-stop Hawaii—all the allure of the Islands in a chop-suey mix that has you kayaking around offshore islets by day and sitting in a jazz club 'round midnight, all without ever having to take another flight or repack your suitcase. It offers both the buzz of modern living in jam-packed Honolulu (the state's capital) and the allure of slow-paced island life on its northern and eastern shores. It is, in many ways, the centre of the Hawaiian universe.
There are more museums, staffed historic sites, and walking tours here than you'll find on any other island. And only here do a wealth of renovated buildings and well-preserved neighborhoods so clearly spin the story of Hawaii's history. It's the only place to experience island-style urbanity, since there are no other true cities in the state. And yet you can get as lost in the rural landscape and be as laid-back as you wish.
Oahu is home to Waikiki, the most famous Hawaiian beach with some of the world's most famous surf on the North Shore and the Islands' best known historical site—Pearl Harbor. If it's isolation, peace, and quiet you want, Oahu is probably not for you, but if you'd like a bit of spice with your piece of paradise, this island provides it.