Some 5 million tourists visit Oahu every year, and 9 out of 10 of them choose accommodations in Waikiki, a 500-acre beachfront neighborhood of Honolulu. Here's where you'll find all the action -- from fast food to fine dining, nightlife including everything from the sweet sounds of Hawaiian melodies to spicy dance music, shopping from bargains to brand names, and every ocean activity you can imagine. Staying here puts you in the heart of it all, but be aware that Waikiki is an on-the-go city with crowds, traffic noise, and its fair share of crime