The best things to do in Honolulu span two very different cities: the beachfront resort strip of Waikiki and the historic downtown that was once the capital of a kingdom. Between them sit Diamond Head, Pearl Harbor, royal palaces, world-class museums, and snorkeling bays. This guide ranks the 14 experiences worth your time, with current prices, reservation rules, and honest time budgets so you can plan without guesswork.
Key Highlights
- Pearl Harbor’s NPS sites are free; the only charge is a $1 reservation fee per ticket on Recreation.gov.
- Diamond Head and Hanauma Bay both require advance reservations for non-residents; book Diamond Head up to 30 days ahead.
- Waikiki Beach, the Friday fireworks, and Punchbowl are all free.
- Iolani Palace is the only official royal residence in the United States.
- Four to six days gives a relaxed first visit; Honolulu pairs well with one North Shore day trip.
Beaches and Outdoors
1. Waikiki Beach
Two miles of sand in front of the high-rises, and still the definitive Honolulu experience. The surf break off Canoes is gentle enough for first-time surf lessons, and the Duke Kahanamoku statue makes the photo stop. Come at sunrise before the crowds, or at sunset when the catamarans head out. Allow 2 to 3 hours; a full beach morning stretches to half a day. Waikiki’s full activity guide covers surf schools and sunset sails.
2. Diamond Head (Le’ahi) Hike
The crater hike is Honolulu’s signature morning workout: 0.8 miles one way with 560 feet of elevation gain, a 225-foot tunnel, and a steep stair section near the top. The payoff is the sweeping view over Waikiki and the south shore. Non-residents must reserve ahead through gostateparks.hawaii.gov, up to 30 days out; entry is $5 per person and parking is $10 per vehicle (credit card only), per Hawaii’s Division of State Parks. Gates run 6 a.m. to 6 p.m. daily; confirm the last-entry time on the booking page when you reserve, since it shifts with the season. Allow 2 hours. Diamond Head’s monument guide has the trail details and parking strategy.
3. Hanauma Bay Snorkeling
A flooded volcanic crater turned marine preserve, Hanauma Bay offers Honolulu’s best easy snorkeling: calm water, 400-plus fish species, and green sea turtles. Non-residents 13 and older pay $25; kids 12 and under are free; parking is $3. The bay is open Wednesday through Sunday, 6:45 a.m. to 4 p.m. with last entry at 1:30 p.m., and closed Monday and Tuesday, per the City and County of Honolulu. Reservations open 2 days ahead at 7 a.m. HST and sell out fast; first-timers watch a short reef-conservation video. Allow half a day.
4. Ala Moana Beach Park
The locals’ beach: a calm, reef-protected lagoon west of Waikiki with picnic tables, running paths, and Magic Island’s sunset point. It is free, uncrowded on weekday mornings, and a 20-minute walk from the Ala Moana Center if you want to pair beach time with shopping. Allow 2 to 3 hours.
5. Manoa Falls Trail
A 1.6-mile round-trip rainforest walk ending at a 150-foot waterfall. The trail is muddy more often than not, so wear shoes you do not mind dirtying, and skip it after heavy rain when the falls run brown. The lush valley setting feels a world away from Waikiki despite being 15 minutes by car. Allow 2 hours. Free.
History
6. Pearl Harbor National Memorial
Honolulu’s most important half-day. The visitor center, grounds, and two museums are free and open daily 7 a.m. to 5 p.m., closed on Thanksgiving, Christmas, and New Year’s Day. The USS Arizona Memorial program is free; the only charge is a $1 nonrefundable reservation fee per ticket on Recreation.gov, according to the National Park Service. Reserve ahead: the old first-come system is gone and standby is limited. The strict bag policy means bringing only a wallet, phone, and water. Allow 3 to 4 hours for the Arizona and visitor center; a full day if you add the paid historic sites. The USS Arizona Memorial guide explains the reservation windows.
7. Battleship Missouri Memorial
Moored on Ford Island, the Mighty Mo is where Japan’s formal surrender ended World War II on September 2, 1945. The self-guided deck tour covers the surrender deck, the big guns, and the kamikaze strike dent. General admission is $42.99 for adults and $19.99 for children 4 to 12, open daily 8 a.m. to 4 p.m., per the memorial’s official press kit. Reach it by the free shuttle from the Pearl Harbor Visitor Center. Allow 2 to 3 hours. The Pearl Harbor museums guide does the ticket math on the Passport versus individual admissions.
8. National Memorial Cemetery of the Pacific (Punchbowl)
Set in an extinct volcanic crater above downtown, Punchbowl holds more than 50,000 veterans’ graves with sweeping city views. It is free, quiet, and moving, and pairs naturally with a downtown historic walk. The Honolulu Memorial and the Courts of the Missing add context. Allow 1 hour.
Culture
9. Iolani Palace
Built in 1882 by King Kalakaua, Iolani Palace is the only official royal residence in the United States and a National Historic Landmark since 1962. The guided and self-guided tours walk through the throne room, the imprisonment room of Queen Lili’uokalani, and interiors restored to the monarchy era. Open Tuesday through Saturday, 9 a.m. to 4 p.m.; closed Sunday and Monday. Adult admission runs roughly $28 to $34 depending on tour type; confirm current rates and book online at iolanipalace.org. Allow 2 hours.
10. Bishop Museum
Hawaii’s state museum of natural and cultural history, and the world’s largest collection of Polynesian artifacts. The Hawaiian Hall’s three floors, the planetarium, and the lava tube demonstration fill a half-day easily. Open daily 9 a.m. to 5 p.m.; adult admission is in the mid-$30s range, with youth and senior discounts, per bishopmuseum.org. Allow 3 hours. Bishop Museum’s visitor guide highlights the must-see galleries.
11. Honolulu Museum of Art and Shangri La
The art museum’s permanent collection spans 5,000 years, but the real prize is Shangri La, Doris Duke’s Islamic art estate on the water at Diamond Head’s base. Shangri La is visitable only through tours booked via the museum, well in advance. Pair both in one art-focused day. Allow 2 to 3 hours for the museum, 2.5 for the Shangri La tour.
12. Downtown Historic Core
Walk the compact blocks around Iolani Palace: the King Kamehameha statue, Ali’iolani Hale (the judiciary building with its famous columns), Kawaiaha’o Church, and the mission houses. It is the densest historic square mile in the Pacific and it is free. Allow 1 to 2 hours, best in the morning before the heat.
Food, Shopping, and Evenings
13. Honolulu Chinatown
Dating to the mid-1800s, Chinatown is Honolulu’s food heart: dim sum houses, lei shops, herbalists, and the weekend farmers’ markets at the edge of downtown. Come hungry and graze. The KCC Farmers Market on Saturday mornings (7:30 to 11 a.m.) is the produce-and-food-truck anchor for the week. Allow 2 hours.
14. Traditional Hawaiian Luau
End a day the old way: an imu-roasted pig unearthing ceremony, hula and fire-knife dancing, and a buffet dinner. Luaus run 4 to 5 hours and typically cost $100 to $200-plus per person, so book early in your trip in case weather forces a reschedule. Waikiki and Ko Olina both host well-reviewed options. Allow a full evening.
Getting Around Without a Car
You can do Honolulu car-free. TheBus costs $3 per ride and routes 8, 19, 20, 22, and 23 connect Waikiki with downtown, Ala Moana, Pearl Harbor, and Diamond Head. Waikiki and downtown are both walkable, and rideshare is widely available. A car only becomes useful for the North Shore or Windward Coast day trips. Honolulu’s snorkeling guide maps the shore spots reachable by bus.
Best Time to Visit
April through October brings warm, dry weather ideal for beaches and hiking. Winter trades some swimming days for big-wave surf watching on the North Shore. Honolulu’s temperatures barely move year-round (highs in the 80s, lows in the 60s to 70s), so pick your month by crowd levels and prices: mid-April to early June and September to mid-December are the sweet spots.
Conclusion
Honolulu rewards travelers who split their days: one beach morning, one history afternoon, one culture stop, one great meal. My recommendation: lock in Diamond Head and Hanauma Bay reservations first, since they sell out, then build the rest around Pearl Harbor. Next step: pick your travel month and book those two reservations before flights.
Frequently Asked Questions
How many days do you need in Honolulu?
Four to six days covers the highlights at a relaxed pace: Waikiki and Diamond Head, Pearl Harbor, a museum or palace day, Hanauma Bay, and a North Shore or circle island day trip. Three days works for the essentials if you skip the day trip. Add days for a slower beach rhythm.
What is the best time of year to visit Honolulu?
April through October offers the warmest, driest weather for beaches and hiking. Winter brings bigger surf and better wave-watching on the North Shore. For thinner crowds and better prices, aim for mid-April to early June or September to mid-December for the best balance.
Do you need reservations for Diamond Head and Hanauma Bay?
Yes, both. Diamond Head requires non-resident reservations up to 30 days ahead through gostateparks.hawaii.gov. Hanauma Bay reservations open 2 days ahead at 7 a.m. HST and the bay is closed Monday and Tuesday. Book both as early as the windows allow, since both sell out in peak season.
How much does Pearl Harbor cost?
The National Park Service sites are free, including the USS Arizona Memorial program; the only charge is a $1 nonrefundable reservation fee per ticket on Recreation.gov. The Battleship Missouri, USS Bowfin, and Pearl Harbor Aviation Museum are separate paid attractions, each with its own admission.
Can you get around Honolulu without a car?
Yes. TheBus charges $3 per ride and connects Waikiki, downtown, Ala Moana, Pearl Harbor, and Diamond Head on routes 8, 19, 20, 22, and 23. Waikiki and downtown are walkable, and rideshare fills the gaps. Rent a car only for North Shore or Windward Coast day trips.
What are the best free things to do in Honolulu?
Waikiki Beach, the Friday-night fireworks, Punchbowl cemetery, the King Kamehameha statue and downtown historic core, Ala Moana Beach Park, and the Manoa Falls trail are all free. Pearl Harbor’s visitor center and museums are free too, apart from the $1 Arizona reservation fee.