Famed for its beautiful horseshoe-shaped sandy beach and clear, calm turquoise waters, this natural marine sanctuary is home to thousands of colorful tropical fish. The waist-deep water inside the reef is perfect for novice snorkelers to explore. More experienced snorkelers might want to check with the lifeguard before venturing beyond to deeper waters to see sea turtles and other marine life. The Bay is least crowded in the early morning or late afternoon.
Also known as Lēʻahi, this crater of an extinct volcano got its name when Western explorers mistook calcite crystals they found there for diamonds. Framing the fabric of the island, the crater is riddled with a tracery of vents and volcanic remnants. The historic trail to the 761-foot (231.9 meter) summit starts inside the crater and is an easy, but steep, 0.8 mile (1.3 kilometers) hike to the top. Adorned with craggy corrugations and tufts of sun-bleached grass, Diamond Head affords astounding views of Oʻahu's charming landscape, including some exceptional views of its beaches and locales.
This is the final resting place for 34,000 veterans of World War I, World War II, the Korean War and the Vietnam War, as well as Challenger casualty Ellison Onizuka. Marble walls flanking the monumental staircase list the names of American heroes. A 30-foot statue of Lady Columbia symbolizes all grieving mothers. There is a sweeping view of Diamond Head to the glistening bays of Pearl Harbor. In ancient times, the crater of the long-dormant volcano served as a site of human sacrifices. Admission is free.
If the idea of a calm, elegant dinner cruise bores you, this might be the kind of marine excursion that you like. The sleek 44-foot craft is one of the fastest in all the islands, thanks to its custom-designed mast. Maita'i Catamaran cuts through the waves at speeds of up to 20 knots—though not without a little splashing. In the daytime, the Maita'i takes passengers on a 90-minute cruise to Diamond Head, while the evening cruise sails straight into the sunset.
Guide Michael Walther has spent his life studying local flora and fauna, and he imparts his knowledge during these interesting eco-excursions. Invigorate yourself with an early morning hike to the 763-foot summit of the Diamond Head Crater. Visit magnificent waterfalls during the afternoon rainforest excursion in the Ko'olau mountains. There are several tours to choose from, as well as combination tour packages. Call for more details.
Windsurfers, a breed apart from regular humans and similar to wave surfers, travel from far-distant corners of the world to hit this top windsurfing beach. When the water is flat, they simply sit and wait. When the wind starts, they head here in droves. If you are not a windsurfer, you can still enjoy the warm waters and gentle surf of this famous, beautiful beach. Barbecue facilities, bathrooms, and showers are available.