Diamond Head is a defining feature of the view known to residents and tourists of Waikiki alike. The volcanic tuff cone is a United States State Monument. While part of it serves as a platform for antennas used by the U.S. government and is closed to the public, the crater's proximity to Honolulu's resort hotels and beaches makes the rest of it a popular destination.

A 0.75-mile (1.1-km) hike leads to the edge of the crater's rim. Signs at the trailhead say that the hike takes 1.5–2 hours round-trip, and recommends that hikers bring water and flashlights. Although not difficult, the signs also say that the hike is not a casual one: the mostly unpaved trail winds over uneven rock, ascends 74 steps, then through a tunnel and up another steep 99 steps. Next is a small tunnel (hence the flashlight) to a narrow spiral staircase (about 30 steps) inside a coastal artillery observation platform built in 1908. From the summit above the observation platform both Waikiki and the Pacific Ocean can be seen in detail.

Waimanalo Beach (the town) lies along the eastern half of Waimanalo Beach (the beach), with an overall length of nearly 5.5 mi (8.8 km), the longest stretch of sandy shoreline on O?ahu. Waimanalo Beach has sparse commercial development along Kalanianaole Highway, and is noteworthy for its local flavor and proximity to Makapu?u Beach and Sea Life Park, which lie closer to Makapu?u Point at the east end of the Island of O?ahu. There are no hotels here.

Located at Hawaii's largest sports venue, the Aloha Stadium Swap Meet is a place where families can gather to share their cultural diversity with pride and a feeling of Aloha. Since 1979, the Aloha Stadium Swap Meet has become Hawaii's premier outdoor market, featuring over 700 vendors, crafters, artists from all over the world, a true melting pot of Aloha.
At the Aloha Stadium Swap Meet, you can find discounts on a wide selection of high quality products from clothing, accessories, Hawaiian souvenirs, pre-packaged ethnic foods, fine jewelry and vintage antiques. Beautifully handcrafts products and exclusive art pieces are made and sold by the artist themselves, which truly make great gifts for yourself or that special someone.

After shopping through the seemingly endless rows of bargains, sit to refresh and relax at one of the many concessions stands throughout the market. Refresh yourself with ice cold Hawaiian shaved ice, a healthy Gyro at Leo's Taverna, or a hearty meal at Aloha Foods. Either way, your appetite will be taken cared of from a menu of tasty foods.

Halona Blowhole is a rock formation and a blowhole on the island of Oahu, Hawaii off of Hanauma Bay overlooking the Pacific Ocean. On windy days when the tide is high, the ocean breeze sends the waves rolling on to the shore where the rock formation then shoots sea spray high into the air through the cave acting like a geyser. It is not always at its best every day though. The blowhole is most active when the tide is high and the winds are strong. This is a big tourist spot in Hawaii. People come from all over to enjoy the beautiful scenery, the beach at the cove, and in the winter it is the spot to go to see the humpback whale as they take their journey leaving the North Pacific or the Honu (The Hawaiian Green Sea Turtles) swimming about. Diving is possible along the coast when there are light northerly winds blowing and no surf. It is recommended diving elsewhere when waves are breaking. The erratic tidal changes that take place offshore make the waters experience a strong current called Moloka'i Express that can drag divers out to sea. A large wedged shape area right off the coast next to the cove is a reef coated with Sinularia Leather Coral, which is a coral who does not need much light to live, in which you can find many different species like echinoderms, slugs, corals, and eels. The shoreline cliff beyond the cove, ending at a point, should be the limit of any shore diving here due to the strong current and distance. There is also a narrow rift along the base of the cliff which was formed by a large section of rock that broke away from the land can be seen very well on a clear day.

The Banzai Pipeline, or simply "Pipeline" or "Pipe," is a surf reef break located in Hawaii, off Ehukai Beach Park in Pupukea on O'ahu's North Shore. A reef break is an area in the ocean where waves crash once they reach the shallows of a reef. Pipeline is notorious and famous for its huge waves breaking in shallow water just above its sharp and cavernous reef, forming large, hollow and thick curls of water that surfers can ride inside of. There are three reefs at Pipeline in progressively deeper water further out to sea that activate at various power levels applied by ocean swells.

The location's compound name combines the name of the surf break (Pipeline) with the name of the beach fronting it (Banzai Beach). It got its name in December 1961 when surfing movie producer Bruce Brown was driving the North Shore with California surfers Phil Edwards and Mike Diffenderfer. Brown stopped at the then-unnamed site to film Edwards catching several waves. At the time, there was a construction project on an underground pipeline on adjacent Kamehameha Highway, and Diffenderfer made the suggestion to name the break Pipeline.

Located within the grounds of Pearl Harbor and the Valor in the Pacific National Monument, are many unique exhibits, museums, and memorials, standing in honor of those who were victims of the assault of December 7, 1941. From the entrance of the stunning new Visitor Center, sweeping panoramic views of the harbor and the Waianae Mountain Range offer a beautiful backdrop for rememberance and solemn reminder of the devistation that occured.

Pearl Harbor Oahu Tours are combined with many of the top sites around the island of Oahu, including the world famous North Shore, the Polynesian Cultural Center, and a driving tour through downtown Honolulu's historic district. Inter-island tours from the Big Island, Maui, and Kauai allow visitors to Oahu's neighbor islands to experience Pearl Harbor's Museums -- including the USS Arizona Memorial, USS Bowfin Submarine, USS Missouri Battleship, and the Pacific Aviation Museum -- while enjoying an island hopping trip to the most visited island in Hawaii.

In winter, Waimea and other North Shore locations such as Pipeline and Sunset Beach host a number of surfing contests because of the large waves found here. These waves are created by winter storms in the North Pacific, and their arrival on O‘ahu's North Shore are typically forecast accurately several days in advance. In summer, Waimea typically has clear and calm water.

The surf break at Waimea Bay was significant in the development of Big wave surfing. Larger surf at the bay went unridden for years until November 7, 1957 when a handful of surfers finally paddled out and rode the giant waves that break off the northern point of the bay. While the surf only breaks big several times a year, Waimea was the most prestigious big wave surf break in the world for decades. With the advent of tow-in surfing, more and more big wave breaks have been discovered that are far superior in quality to Waimea. However, the bay still holds a significant place even in today's world of big wave surfing.

Koko Head is the headland that defines the eastern side of Maunalua Bay along the southeastern side of the Island of O?ahu in Hawai?i. On its western slope is the community of Portlock, a part of Hawai?i Kai. Koko Head (at 642 ft or 196 m) is an ancient tuff cone that is somewhat dwarfed by its neighboring tuff cone, Koko Crater, with its peak, Kohelepelepe (or Pu?u Mai), rising to 1208 ft or 368 m. Koko Head itself has three significant depressions or old vents, the largest of which forms the well-known Hanauma Bay.

This eastern end of O?ahu is quite scenic and most of the area is part of Koko Head Regional Park, administered by the City & County of Honolulu.