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The Best Things to Do in Oahu

Oahu packs Hawaii's biggest hits onto one island: a solemn WWII memorial, a crater you can hike before breakfast, the world's best big-wave beaches and a city that never quite sleeps. Here are the things actually worth your days - ranked, with the local tips and how to book each.

By Oliver7 min readPublished
Table of contents
Diamond Head crater rising behind the Waikiki shoreline on Oahu
Photo: Ossewa · CC BY-SA 4.0

In Brief

What are the best things to do in Oahu?

The best things to do in Oahu are visiting the Pearl Harbor National Memorial, hiking Diamond Head at sunrise, snorkeling Hanauma Bay, driving to the North Shore for big-wave beaches and shrimp trucks, and swimming or surfing at Waikiki Beach. Most first-timers base in Waikiki and split their time between the historic sights, the beaches, and one full North Shore day.

Key takeaways

  • Book two things ahead: Pearl Harbor's USS Arizona Memorial (free but timed) and Hanauma Bay (reservation-only, closed Mondays and Tuesdays).
  • Hike Diamond Head at sunrise to beat the heat and the crowds - reservations are required for non-residents.
  • Give the North Shore a full day: Haleiwa town, the big-wave beaches and Kualoa Ranch are all up there.
  • You'll want a rental car for at least a day or two; Waikiki itself is walkable and bus-friendly.

14 best things to do in Oahu

Ranked best-first, with an insider tip and how to book each. Prices and hours change - check before you go.

  1. Pearl Harbor National Memorial in Oahu

    History

    Pearl Harbor National Memorial

    Rated 4.8 out of 5 on Google Maps from 27,593 reviews, as of October 2026

    The USS Arizona Memorial floats above the battleship still entombed where it sank on December 7, 1941 - one of America's most moving historic sites. The visitor center's museums, the Battleship Missouri and the Pacific Aviation Museum can fill most of a day.

    Insider tip
    The Arizona Memorial boat program is free but timed - grab tickets the moment they release (about 8 weeks out, or a small batch the day before). Bags aren't allowed; travel light.
  2. Diamond Head (Le'ahi) in Oahu

    Hike & viewpoint

    Diamond Head (Le'ahi)

    Rated 4.7 out of 5 on Google Maps from 2,975 reviews, as of October 2026

    The extinct crater on Waikiki's skyline is Oahu's signature hike: a paved-then-stepped 1.3-km climb to a summit bunker with a 360° view over the coast and city. Under 90 minutes round trip for most people.

    Insider tip
    Out-of-state visitors must reserve an entry slot in advance. Go at the 6am opening for sunrise, cool air and a near-empty trail.
  3. Hanauma Bay Nature Preserve in Oahu

    Snorkeling

    Hanauma Bay Nature Preserve

    A protected volcanic bay that's the best beginner snorkel on the island - calm, shallow, and thick with reef fish and the occasional honu (green sea turtle). A short conservation video is required before you enter.

    Insider tip
    Reservation-only and closed Mondays and Tuesdays. Slots open online 48 hours ahead and vanish in minutes - set an alarm. First entry (around 6:45am) has the clearest water.
  4. Waikiki Beach in Oahu

    Beach

    Waikiki Beach

    Free

    The famous crescent below Diamond Head is a genuinely great beach for beginners: gentle rollers perfect for a first surf lesson or an outrigger canoe ride, calm swimming, and a sunset scene with tiki torches and free hula shows.

    Insider tip
    It's busiest in the middle. Walk toward the Diamond Head end (Queen's Beach) for more room, or catch the Friday-night fireworks off the Hilton lagoon.
  5. North Shore & Haleiwa Town in Oahu

    Road trip

    North Shore & Haleiwa Town

    Oahu's other half: the surf towns and beaches of the North Shore. In winter, Waimea Bay and Banzai Pipeline see some of the planet's biggest rideable waves; in summer they turn swimmable. Haleiwa town serves shave ice and food-truck garlic shrimp.

    Insider tip
    Make it a full day and go counter-clockwise. Giovanni's and the roadside shrimp trucks at Kahuku are the classic lunch stop.
  6. Kualoa Ranch in Oahu

    Adventure & film sites

    Kualoa Ranch

    A 4,000-acre working ranch on the Windward Coast where Jurassic Park, Kong and Lost were filmed. ATV, horseback, zipline and movie-site tours run through jaw-dropping valleys and the 'Jurassic' jungle.

    Insider tip
    Tours sell out - book a specific experience ahead rather than turning up. The movie-sites bus tour is the easiest with kids.
  7. Lanikai Beach & Kailua in Oahu

    Beach

    Lanikai Beach & Kailua

    Free

    Powder-soft sand, impossibly turquoise water and the two Mokulua islets offshore make Lanikai a regular 'world's best beach' pick. Neighboring Kailua Beach is bigger, with parking and facilities.

    Insider tip
    Lanikai has almost no parking and no facilities - park in Kailua and walk, or rent a kayak to paddle out to the Mokes (permit needed to land).
  8. Polynesian Cultural Center in Oahu

    Culture

    Polynesian Cultural Center

    Six recreated Pacific-island villages on the North Shore, staffed by students performing hula, fire-knife dancing and canoe pageants. The evening luau and 'Ha: Breath of Life' show are the big draws.

    Insider tip
    It's a long day and it's up on the North Shore - pair it with a North Shore drive, and book the luau package if you want the full experience.
  9. Manoa Falls Trail in Oahu

    Hike

    Manoa Falls Trail

    Rated 4.7 out of 5 on Google Maps from 5,437 reviews, as of October 2026
    Free

    A lush 45-minute rainforest walk to a 45-meter waterfall, ten minutes from Waikiki. Bamboo groves, banyan roots and 'Jurassic'-green canopy - it doubles as a film location.

    Insider tip
    It's muddy year-round; wear grippy shoes. Go early to park (the lot is small and fills) and to beat afternoon showers.
  10. Byodo-In Temple in Oahu

    Culture

    Byodo-In Temple

    A serene replica of a 900-year-old Japanese temple set against the fluted Ko'olau cliffs on the Windward side. Koi ponds, a 3-ton brass bell and wild peacocks make it one of the island's most photogenic quiet spots.

    Insider tip
    It's inside the Valley of the Temples cemetery; there's a small entry fee. Ring the bon-sho bell before entering - it's said to bring peace and good fortune.
  11. City & history

    Honolulu: Iolani Palace & Chinatown

    Rated 4.6 out of 5 on Google Maps from 6,073 reviews, as of October 2026

    Downtown holds the only royal palace on US soil - the restored home of Hawaii's last monarchs - plus a gritty-cool Chinatown of lei stands, galleries, craft-cocktail bars and some of the city's best food.

    Insider tip
    Iolani Palace is guided or self-led audio tour only, timed tickets. Chinatown is best late afternoon into the First Friday art walk.
  12. Nu'uanu Pali Lookout in Oahu

    Viewpoint

    Nu'uanu Pali Lookout

    Free

    A five-minute stop off the Pali Highway with a sheer, wind-blasted view over the Windward Coast from a 300-meter cliff - the site of a pivotal 1795 battle that unified Oahu. The trade winds here can literally hold you up.

    Insider tip
    Hold onto hats and phones - the wind is no joke. It's an easy add-on when crossing to Kailua or the Windward side.
  13. Ko Olina Lagoons in Oahu

    Beach & family

    Ko Olina Lagoons

    Free

    Four calm, man-made lagoons on the sunny west side with gentle water, grassy lawns and easy parking - the island's most stress-free swim with small kids, and a good base for the Disney and resort area.

    Insider tip
    Parking lots are small and fill by mid-morning on weekends; arrive early. Lagoon 1 (Kohola) sits by the marina where sunset catamaran and whale-watch trips depart.
  14. Sunset catamaran & whale watch in Oahu

    On the water

    Sunset catamaran & whale watch

    Sailing off Waikiki at golden hour is the classic Oahu evening; December-through-April trips double as humpback-whale watching when the whales migrate through Hawaiian waters.

    Insider tip
    The BYOB 'booze cruise' catamarans leaving straight off Waikiki Beach are cheapest; book a dedicated whale-watch boat in winter for the best sightings.

Where to stay in Oahu

The best areas to base yourself, and who each suits.

  • Waikiki

    First-timers - walkable beach, dining and nightlife, the most hotels at every price.

  • Ko Olina

    Families and couples - calm man-made lagoons and resorts on the quieter west side.

  • North Shore (Haleiwa)

    Surfers and slow-travelers - laid-back town, big-wave beaches, few big hotels.

  • Kailua

    Beach purists - the island's best powder-sand bays, mostly vacation rentals.

Compare Oahu hotels

Planning your Oahu trip

Best time to visit

April-May and September-October: warm, drier, and cheaper than the mid-December-to-March and summer peaks. Big North Shore surf runs roughly November-February.

Getting around

Waikiki is walkable and served by TheBus and the Waikiki Trolley. For the North Shore, Windward Coast and circle-island drives you'll want a rental car for a day or two - the scenery is the point. Rideshare works for airport and in-town hops.

Things to do in Oahu: FAQ

The questions travelers ask most when planning a trip here.

Four to five days is the sweet spot: one for Pearl Harbor and Honolulu, one for Diamond Head and Waikiki, a full day on the North Shore, and a day for the Windward side (Kailua, Lanikai, Kualoa). Three days covers the headline sights if you're tight; a week lets you slow down and add snorkeling, hikes and a neighbor-island hop.

Plenty. Waikiki, Lanikai, Kailua and Ko Olina beaches are free; so are the Manoa Falls and (aside from parking) many trails, the Nu'uanu Pali Lookout, the Friday-night Hilton fireworks and the free hula shows at Kuhio Beach. The USS Arizona Memorial boat program is free too - you just need a timed ticket. Budget for Diamond Head and Hanauma Bay entry fees and any tours.

Not the whole time. Waikiki is walkable and well served by TheBus and rideshare, so you can skip a car on Waikiki-and-Pearl-Harbor days. But for the North Shore, Windward Coast and a circle-island drive, a rental car for a day or two is worth it - those areas are spread out and the drive itself is half the experience.

Three things sell out or require reservations: the USS Arizona Memorial at Pearl Harbor (free timed tickets, released ~8 weeks out), Hanauma Bay (reservation-only, closed Mon-Tue, slots open 48 hours ahead), and Diamond Head entry for non-residents. Popular tours like Kualoa Ranch experiences and the Polynesian Cultural Center luau also book up, especially in peak season.

April-May and September-October offer warm, drier weather with lower prices and thinner crowds than the mid-December-to-March holiday peak and the summer school-break rush. Come November-February if you want to watch giant North Shore surf; that's also whale-watching season on the leeward side.

Very. The calm lagoons at Ko Olina and gentle Waikiki surf suit small kids, Kualoa Ranch and the Polynesian Cultural Center are built for families, and the beaches and easy hikes work for all ages. Base in Waikiki or Ko Olina, rent a car for the North Shore day, and you have a straightforward family week.

Continue Planning Your Trip

Photo credits (13)

Photos via Wikimedia Commons, used under their respective licences.