Aerial Tours Biplane Rides. After suiting up with goggles and leather helmets, you can climb into an open cockpit of a restored Stearman biplane for loops, rolls, hammer heads, and other aerobatic maneuvers above Oahu's North Shore. Only one person can go up at a time. Dillingham Airfield, Mokuleia, PHONE: 808/637-4461. COST: 20 mins $125, 40 mins $175. Daily 10:30-5:30. Glider Rides. Through the bubble top of a sleek sail plane you get aerial views of Oahu's North Shore with its coral pools, sugarcane fields, windsurfers, and, in winter, humpback whales. On-board live videotaping is available. Reservations are not accepted. Dillingham Airfield, Mokuleia, PHONE: 808/677-3404. COST: 1 passenger $90, 2 passengers $120. Daily 10-5, 20- and 30-min flights every 20

mins. Excursions & Tour Companies American Express Tours and Activities Center (PHONE: 808/521-7283) books through several tour companies and can help you choose which tour best suits your needs. E Noa Tours (PHONE: 808/591-2561) uses minibuses and trolleys and likes to get you into the great outdoors. Polynesian Adventure Tours (PHONE: 808/833-3000) has motorcoaches, vans, and minicoaches. Polynesian Hospitality (PHONE: 808/526-3565) provides narrated tours. Roberts Hawai'i (PHONE: 808/539-9400) has equipment ranging from vans to presidential limousines. Trans-Hawaiian Services (PHONE: 808/566-7420) offers multilingual tours. Most tour companies offer some version of the following standard Oahu tours listed below: Circle Island Tour. There are several variations on this theme. Choose a tour package that comes the closest to matching your desires. Some of these all-day tours include lunch. Transport is either bus or minibus, the latter being slightly more expensive. COST: $45-$65. Little Circle Tour. These half-day tours cover the territory on the east side of Oahu. Most are the same, no matter which company you choose. COST: $25-$40. Pearl Harbor and City. This comprehensive tour includes the boat tour to Pearl Harbor run by the National Park Service. COST: $25-$40. Polynesian Cultural Center. One of the advantages of the tour is that you don't have to drive yourself back to Waikiki after dark if you take in the evening show. COST: $55-$175. Sea Tours Dream Cruises. Dream Cruises offers tours of Pearl Harbor aboard the 100-ft motor yacht American Dream. The trip takes place in the early morning to coincide with the time that Pearl Harbor was attacked on December 7, 1941. It includes a stop near the U.S.S. Arizona Memorial, where the captain conducts a brief memorial service and lei placement ceremony. In winter, this cruise is paired with a whale-watch. 1020 Auahi St., PHONE: 808/592-5200. COST: $21.95. Daily 7:30-10:30 AM. Tradewind Charters. This is a good bet for half-day private charter tours for sailing, snorkeling, and whale-watching. These luxury yachts not only eliminate crowds, but guests also have the opportunity to "take the helm" if they wish. The cruise also features snorkeling at an exclusive anchorage. Charter prices are approximately $495 and accommodate up to six passengers. 796 Kalanipuu St., Honolulu 96825, PHONE: 800/829-4899. Underwater Tours Atlantis Submarines. This company operates two vessels off Waikiki: a 65-ft, 80-ton sub carrying up to 48 passengers and a newer 102-ft, 64-passenger craft. Rides are popular with children; a trip includes a catamaran ride to the dive site, providing great views of the Waikiki-hour tour is sponsored by the Chinese Chamber of Commerce. Reservations are required. PHONE: 808/533-3181. COST: $5. Tues. at 9:30. Historic Downtown Walking Tour. Volunteers from the Mission Houses Museum (553 S. King St.) take you on a two-hour walk through Honolulu, where historic sites stand side by side with modern business towers. During the first hour, you get a tour of the Mission Houses themselves. Reservations are required. PHONE: 808/531-0481. COST: $8. Thurs. and Fri. 9:30 AM-12:30 PM. Honolulu Time Walks. History springs to life for young and old alike during these fun jaunts, which come with appropriately costumed narrators. Tours include "Haunted Honolulu," "Honolulu's Crime Beat," "Mysteries of Moiliili," "Mark Twain's Honolulu," and the "Old Hawaii Saloon Walk." PHONE: 808/943-0371. COST: $7-$45.