Oahu is encircled like a lei with more scenic miles of sandy beaches than any of the Hawaiian Islands. The island also abounds with water sports, many of which support ecotourism and are inexpensive or free. Yet most tourists spend their entire vacations at Waikiki. And they never know what they are missing.

Some of the best beaches in Hawaii and the United States are found on Oahu. You may have seen some of them on the Travel Channel. At least two of them, Lanikai and Kailua Bay, have earned number one position on Dr. Beach's list.

Even on a tight budget, you can kayak, snorkel, swim, body board, take a surf lesson, go on a sailing dolphin swim cruise, paddle on a body board to a deserted off shore island, and still have money left for other eco activities. Amazing sunsets on the North Shore and the Leeward side are free of charge, as are front row seats to world class surfing championships.

And with shore waters surrounding the island no colder than most indoors swimming pools, theres no need to rent a wet suit. Those with disabilities can use, free of charge, one of the many Landeez All-Terrain Wheelchairs provided by the Honolulu Department of Parks.

Before heading off for your fun in the sun, consider a few words of caution. Only enter the waters where there are lifeguards and no signs warning of strong currents or other dangers. Check with the lifeguard about ocean conditions. The City and County of Honolulu has a map of lifeguarded beaches that can be printed from their Website at Hawaii Ocean Safety and Lifeguard Services Division

Here, you will also find beach safety tips provided by Hawaii lifeguard, such as warnings about climbing around on the rocks near the surf. You should always stay off rocks that are close enough to the water for waves to crash on them and/or that are slippery. And to avoid a painful sun burn, always remember to apply waterproof sunscreen. The cooling trade winds make you feel that you are getting less of those intense tropical sun rays than you are.

Stay safe and go home with lots of happy memories. As always, pay attention to signs and check with lifeguards if you have any questions.

You will find a small, but helpful beach guide, in Aloha from Hawaii, one of the free magazines in the rack near the Honolulu's Airport's visitors information booth. To look at the maps and read the Oahu beach guide online, surf to http://www.hawaiihotelsdirectory.comand click on Guides and Maps at the top of the page.