There is an abundance of tour possibilities on each Hawaiian Island. They can be on the expensive extreme, like renting the exclusive service of a helicopter and pilot, all the way down to having a guy pick you up at your hotel a drive you to a snorkel spot and like Hanauma Bay, hand you rental gear and pick you up later. Lets identify some of the more popular Hawaii tours. There are helicopter and plane tours. One Day Tours to Other Islands (real cool to see one other island). There are circle island tours by bus, which are real popular. Tours to see the Polynesian Cultural Center on Oahu. Dinner Cruises on the water at Waikiki are very popular and the lights at night are very romantic. There are ocean Kayak Tours with fun stable Kayaks. Combination Tours are real popular too. An example of this would be a sailing sight-seeing tour that also does another activity like snorkeling. Or a horseback riding tour where you also go swimming at a waterfall. There is also Surfing and Wind Surfing Lessons. Off road Jeep or ATV tours. Bicycle downhill tours where you are driven to the top of a mountain and coast downhill on a bike. But remember you can make your own tours too. You can take a city bus to Peal Harbor. Hike from your Hotel to Diamond Head. Rent a surfboard on Waikiki beach. The possibilities of making your own tours go up if you have a rental car.