Oahu Helicopter Volcano Tours
Each of the three touring companies that are popular for touring Oahu offers at least three different tours of Oahu, and nearly every tour goes to volcano "Diamond Head." This is an extinct volcano on the island that created Oahu out of a massive eruption before written time. Oahu is one of the most beautiful islands, so the land that you will see will be very picturesque and is great for adding to your photo album. Choose your tour based mainly on price and touring companies for the most enjoyable experience for the least amount of money.
Heli USA
Heli USA has every tour go to the extinct volcano except for their City Lights tour. If you are die hard about wanting pictures, then you should go on the 60 minute tour of the island. They hover for you so that you can get good pictures of the formations. They offer great rates and are one of the best helicopter companies in Hawaii. If you want to book a flight with them, then you should go to their website, where they offer discounts for their flights. You have to book at least three days in advance and give 24 hours notice of cancelations in order to get a full refund.
Makani Kai
Makani Kai has tours that also go to "Diamond Head" in Oahu, but you will have to get the 30 minute tour or longer. These tours are good and are nearly up to the level of the Heli USA tours. They are not as luxurious, but they are well narrated and take you to most of the same locations. You will want to be sure to bring your camera, because at these costs you should really make some lasting memories. The best of the island can be seen on their tours and pictures secure the memory in your mind.
Paradise Helicopters
Paradise Helicopters is the least of the Oahu companies, but it isn't too bad. However, it is the cheapest of the tours. If it is the cheapest that you want, then Paradise is the way to go. Just don't expect caviar to be served on the flight. But that won't matter too much, because you will have the most gorgeous in-flight movie ever, the Oahu countryside filled with mountains, ocean views, and spectacular waterfalls. You will enjoy your trip, no matter which tour you take or which touring company you book through.