1. Yokohama Bay

Yokohama bay is home to Keawa’ula beach. This hidden gem is located literally at the end of the road while heading north up the west side of the island. Although remote and a little bit of a trek to get to there, it is worth the trip. This is easily one of the nicest beaches on Oahu and hardly ever crowded. Feeling adventurous? Continue down the dirt trail at the end of the road to Oahu’s northernmost tip, Ka’ena Point, from this location.

If you are visiting in November through February then definitely go there to see the locals try to tackle the awesome waves that beat the shore here. But don’t plan on joining in unless you are an experienced surfer, strong currents and a rocky ocean bottom can make this treacherous for beginners.

2. Haleiwa

Located about one-hour drive from Waikiki, Haleiwa and the North Shore of Oahu are known as the surfing capital of the world. Haleiwa, pronounced hah-lay-EE-wah is an old community dating back to the 1900s devoted to the sugar plantation industry.

This charming surfer town may not be much at first glance, but it is packed with history and local style that can’t be missed. Here you’ll see many locals getting ready for an all day surf session at the famous beaches of Waimea Bay including Sunset Beach and the legendary Banzai Pipeline.

3. Skydive

Flying above the clouds and falling through the Hawaiian skies at 120mph is an adventure you will always remember and treasure.

http://www.skydivehawaii.com/

4. Sunset Beach

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.

5. Polynesian Cultural Center

The Polynesian Cultural Center is a Polynesian-themed theme park or living museum located in Laie, on the northern shore of Oahu, Hawaii. The PCC occupies 42 acres owned by nearby Brigham Young University–Hawaii.

Within eight simulated tropical villages, performers demonstrate various arts and crafts from throughout Polynesia. In addition to the daytime exhibits and demonstrations, PCC features an evening show for an additional charge.

6. Kaa'awa

Kaaʻawa is north of Kāneʻohe Bay (north of Kaʻōʻio Point, also Kalaeokaʻōʻio), and the Pacific Ocean shore here is fronted by a broad fringing reef with a narrow, but quite inviting beach (Kanenelu Beach, Kalaeʻōʻio Beach Park, and Kaaʻawa Beach Park).

Kaaʻawa Valley is part of Kualoa Ranch and used for various tourist activities as well as filming. Major films and TV series incorporating significant views of the valley include George of the Jungle, Jurassic Park and Lost.

7. Kailua

Kailua Beach is often cited as Hawaii's best beach. It is crescent-shaped, about 2.5 miles (4.0 km) long and ranging between 50 and 150 feet (15 and 46 m) wide. The ocean bottom fronting the beach slopes gently to overhead depths without any coral heads. Light to medium waves support surfing and bodysurfing.

Sea kayaking and stand-up paddleboarding to the protected seabird sanctuaries Flat Island and the Mokulua Islands, popularly known as "the Mokes", have become increasingly popular water activities at the beach.

8. Waimanalo

Waimānalo Beach lies along the eastern half of Waimānalo Beach, with an overall length of nearly 5.5 mi (8.9 km), the longest stretch of sandy shoreline on Oʻahu. Waimanalo is also the home of Sea Life Park, a marine biology and sealife attraction located near Makapu'u Beach.

9. Sandy Beach

Sandy Beach on the South Shore of Oʻahu is known for its excellent bodyboarding and bodysurfing due waves that break very close to the shore. Consequently, more injuries occur per year at Sandy Beach than any other beach in Hawaiʻi, earning it the infamous nickname, "break-neck" beach. This never stopped President Barack Obama though, as this was his favorite spot growing up.

The beach park is located between Hanauma Bay Nature Preserve Park on the west and Makapuʻu Point.

10. Hanauma Bay

Hanauma Bay Nature Preserve, one of the most spectacular natural resources in Hawaii. Hanauma Bay sees an average of 3000 visitors a day, or around a million visitors a year. In addition to the turtles, Hanauma Bay snorkelers can take a peek at the Humuhumunukunukuapuaa (the Hawaiian state fish), trumpet fish, angel fish, and many more.

The bay is closed to tourists on Tuesdays in order to allow the fish a day of feeding without interruption by swimmers

Plan to get to the bay early. The parking lot often fills early and you will be turned away if it is full. By getting an extra early start you will avoid long lines at the ticket booth and snorkel concession.

11. Diamond Head

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. 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 lighted tunnel to a narrow spiral staircase (43 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.

12. Waikiki Beach

Waikiki was the favorite playground of Hawaiian royalty in the 19th century who use to surf these waters on an early form of long board. Now If not the most famous stretch of beach in the world, Waikiki Beach (which is in fact, a series of beaches) is by far the most famous in Hawaii. It forms the foreground of most postcard pictures, with Diamond Head in the background, and it is the first beach that comes to mind when most people think of Hawaii.

This 1.5 mile (2.4 km) stretch of white sand beach is the nucleus of Hawaii's tourist industry, packed full of high-rise hotels that promise to treat you like a king, some of which may also require a king's ransom for admission. Although it is often criticized for its concrete-jungle appearance, large crowds, and touristy feel, there is a lot to enjoy here and you can still find a quiet spot if you know where to look.

13. Bishop Museum

The Bernice Pauahi Bishop Museum, designated the Hawaiʻi State Museum of Natural and Cultural History, is a museum of history and science in the historic Kalihi district of Honolulu. Founded in 1889, it is the largest museum in Hawai'i and is home to the world's largest collection of Polynesian cultural and scientific artifacts. Besides the comprehensive exhibits of Hawaiiana, the Bishop Museum has an extensive entomological collection of over 13.5 million specimens, the third largest collection in the United States.

14. Kahe Point Beach

Kahe Point Beach Park is also nicknamed Electric Beach because of the electric power plant located nearby. The electric plant outflows clean warm water through cooling pipes offshore. At the openings of these pipes the water temperature is several degrees warmer than the surrounding ocean and attracts scores of sea life. Because of this it is a favorite snorkeling beach on Oahu.

15. Ko’Olina

Ko’Olina Resort is a 642-acre vacation and residential community on the leeward coast of Oahu. Ko’Olina has 2 miles (3.2 km) of coastal frontage and includes three natural and four man-made lagoons with white-sand beaches. It is home to three hotel and vacation-club resorts: Aulani, a Disney Resort & Spa; the JW Marriott Ihilani Resort & Spa, and Marriott’s Ko Olina Beach Club, as well as several resort condominiums and villa homes. The resort includes Ko Olina Golf Club and Ko Olina Marina, as well as shopping and dining at Ko Olina Station and Ko Olina Center. Watabe Wedding manages four wedding chapels on the resort property.