The best things to do in Honolulu fit a remarkable amount of Hawaii into one city. A national memorial, a volcanic crater hike, world-class snorkeling, a royal palace, and a legendary beach sit within a short drive of each other. This ranked list orders them by wow-factor and practicality, with fees, reservation rules, and time needed for each, so you can plan in one sitting.
Key Highlights
- Book Pearl Harbor’s USS Arizona boat program (recreation.gov, 56 days ahead) and Hanauma Bay (two days ahead, 7 AM Hawaii time) FIRST, then plan everything else around those two reservations.
- The top three sights are Pearl Harbor, the Diamond Head hike, and snorkeling at Hanauma Bay. All three require reservations; everything else on this list is walk-in friendly.
- Expect $12 to $39 per adult for the big-ticket sights. Waikiki Beach, the Manoa Falls Trail, and the Friday night fireworks are completely free.
- Four to six days makes a relaxed first visit, and you do not need a car. TheBus (about $3 a ride; confirm current fares) reaches every sight on this list.
- April to May and September to November bring the best mix of weather, thinner crowds, and generally lower hotel rates than the winter peak.
Honolulu at a glance: fees, reservations, and time needed
Use this table to build your days. Prices were checked against official sources in October 2026; confirm anything marked “about” at booking.
| Attraction | Fee (adult) | Reservation | Time needed |
|---|---|---|---|
| Pearl Harbor National Memorial | Free; $1 boat-program reservation fee | Yes, recreation.gov, 56 days ahead | Half day |
| Diamond Head State Monument | About $5 entry + $10 parking | Yes, timed slot | 1.5 to 2 hours |
| Hanauma Bay Nature Preserve | $25 (ages 13+) | Yes, 2 days ahead; closed Mon/Tue | 3 to 4 hours |
| Waikiki Beach | Free | No | Half day |
| Iolani Palace | $34 docent-led / $28 audio | Yes, online only | 2 hours |
| Bishop Museum | $38.95 | Timed ticket recommended | 2 to 3 hours |
| Nu’uanu Pali Lookout | $7 parking, no entry fee | No | 30 to 45 minutes |
| Manoa Falls Trail | Free | No | 1.5 to 2 hours |
| Honolulu Zoo | $21 | No | 2 hours |
| Waikiki Aquarium | $12 | No | 1 to 2 hours |
| Friday night fireworks | Free | No | 1 hour |
The 11 best things to do in Honolulu, ranked
1. Pearl Harbor National Memorial
No Honolulu itinerary outranks Pearl Harbor. The free, deeply moving USS Arizona Memorial program anchors a row of ticketed historic sites along Battleship Row. Plan a half day, and go early: the first boats cross around 8 AM, when the harbor is calmest and crowds are thinnest.
The visitor center and grounds are free, and the boat program is free apart from a $1 reservation fee per ticket on recreation.gov, with slots opening 56 days ahead at 3 PM Hawaii time. Our ultimate guide to visiting Pearl Harbor covers the booking steps and the free-versus-ticketed call.
Beyond the memorial, Battleship Row holds the USS Missouri, the Pacific Fleet Submarine Museum, and the Aviation Museum, all ticketed. The memorial plus one ship is the sweet spot for most visitors.
Insider tip: build your whole Honolulu schedule around this reservation, then add Hanauma Bay and Diamond Head. Arrive 30 minutes before your boat time to clear the no-bag security line.
Travel light or budget $7 to $10 for a locker. For the backstory, read our account of the bombing of Pearl Harbor, a day that changed history before you stand over the Arizona.
2. Diamond Head State Monument
The hike up Diamond Head is Honolulu’s signature workout with a postcard payoff. The 0.8-mile trail climbs 560 feet through tunnels and old military bunkers to a summit facing Waikiki and the Pacific. Allow 1.5 to 2 hours round trip.
Entry runs about $5 per person with $10 parking, confirm at booking, and every non-resident needs a timed reservation, currently bookable roughly 30 days ahead at gostateparks.hawaii.gov. Arrive within the first 30 minutes of your slot, and carry water: the trail has no shade.
Insider tip: book the earliest slot to beat the heat and the buses. Our Diamond Head State Monument guide covers the trail turn by turn, including the staircase stretch that surprises first-timers.
3. Hanauma Bay Nature Preserve
Hanauma Bay is the best snorkeling on Oahu you can reach by city bus: a flooded volcanic crater with a calm, shallow reef full of green sea turtles and reef fish. Plan 3 to 4 hours. Entry is $25 for ages 13 and up (12 and under free); closed Mondays and Tuesdays.
Reservations open two days ahead at 7 AM Hawaii time and go within minutes, so set an alarm. Parking is $3 per vehicle, cash only. Insider tip: go Wednesday morning, the first open day after the closure, when the water is clearest, and bring reef-safe sunscreen.
4. Waikiki Beach
Waikiki Beach earns its fame: gentle, rolling waves beneath Diamond Head, swimmable nearly year-round, free, and the easiest place in Hawaii to try surfing. Swim before 10 AM for the calmest water. For the full neighborhood playbook, see our ranked list of the best things to do in Waikiki.
Insider tip: walk 15 minutes east to the Kapiolani Park end for thinner crowds and the same Diamond Head view. On Fridays, stay for the free fireworks, usually at 7:45 PM from Hilton Hawaiian Village.
5. Iolani Palace
Iolani Palace is the only official royal residence in the United States. This 1882 palace in downtown Honolulu was home to Hawaii’s last monarchs, and its restored state rooms and royal portraits tell the Hawaiian Kingdom’s story. Docent-led tours run $34 for adults, audio tours $28; tickets are online only with no walk-ups, and the palace is closed Sundays and Mondays.
Insider tip: book the docent-led tour for answers the audio track never touches, especially about the 1893 overthrow. Modest dress is required, with shoe covers over footwear. Pair it with the King Kamehameha statue across the street.
6. Bishop Museum
The Bishop Museum is Hawaii’s flagship museum of natural and cultural history, and its renovated Hawaiian Hall is worth the trip alone: three skylit floors of feather cloaks, canoes, and royal regalia. Timed admission is $38.95 for adults (youth, senior, and kamaaina discounts), on a cashless campus open daily 9 AM to 5 PM.
Insider tip: arrive at opening on a weekday. School groups land late morning, and you will have Hawaiian Hall nearly to yourself for the first hour.
7. Nu’uanu Pali Lookout
Ten minutes up the Pali Highway, the Nu’uanu Pali Lookout delivers the most dramatic view on this list: sheer cliffs falling to windward Oahu and Kaneohe Bay, with history from Kamehameha’s 1795 campaign. No per-person fee; non-residents pay $7 per vehicle for parking. Open daily 6 AM to 6 PM.
Insider tip: go on a clear morning before clouds stack over the Koolaus, and hold your hat. The wind here is famously fierce.
8. Manoa Falls Trail
Honolulu’s easiest great hike winds through bamboo forest and dripping-wet rainforest in Manoa Valley, 15 minutes from Waikiki, ending at a waterfall wrapped in green. Free, shaded, and doable in 1.5 to 2 hours. The falls run strongest after rain, which also means mud: wear shoes with grip, and skip swimming because of rockfall and water quality.
Insider tip: go early on a weekday and bring mosquito repellent. The trailhead lot fills by mid-morning on weekends; the city bus drops you a short walk away.
9. Honolulu Zoo
The Honolulu Zoo sits inside Kapiolani Park at the foot of Diamond Head, mixing African savanna species with Hawaiian standouts like the nene goose, plus a keiki zoo for younger kids. Admission is $21 for adults and $13 for kids 3 to 12 (kamaaina and military discounts). Open daily 10 AM to 4 PM, last entry 3 PM, no reservation needed.
Insider tip: arrive at the 10 AM opening when the animals are most active. The splash pad near the entrance rescues hot afternoons with kids.
10. Waikiki Aquarium
Small but mighty: founded in 1904, the second-oldest aquarium in the United States, with 500-plus species focused on Hawaiian waters, from reef sharks to the corals you just snorkeled over at Hanauma Bay. Admission is $12 for adults and $5 for juniors and seniors. Open daily 9 AM to 4:30 PM; one to two hours is plenty.
Insider tip: visit the day after Hanauma Bay. Recognizing the fish you swam with yesterday turns a small aquarium into a highlight, especially for kids.
11. Friday night fireworks
End a beach day the local way. Every Friday night, usually at 7:45 PM, fireworks launch over Waikiki from Hilton Hawaiian Village, and the whole beachfront becomes a free front-row seat. Claim a spot on the sand or the Kapiolani Park lawn 45 minutes early. Our Waikiki travel guide has the full Friday-night playbook.
Insider tip: watch from the Diamond Head end near Queen’s Surf Beach for the fireworks plus the lit skyline in one frame, with half the crowd of central Waikiki.
The best free things to do in Honolulu
Honolulu is generous with freebies: Waikiki Beach, the Manoa Falls Trail, and the Friday fireworks cost nothing, and the Nu’uanu Pali Lookout charges only $7 for parking. Add Ala Moana Beach Park, the King Kamehameha statue, and the Honolulu Museum of Art’s free second Thursdays for two full days without spending a dollar on admission.
The best time to visit Honolulu
April to May and September to November hit the sweet spot: highs in the high 70s to low 80s, thinner crowds, and generally lower hotel rates than the winter peak. December through April is whale season, and winter brings monster surf to the North Shore, thrilling to watch but dangerous for swimming.
Getting around Honolulu
You do not need a car for this list. Waikiki is flat and walkable, and TheBus, about $3 a ride (confirm current fares), runs direct routes to the big sights: the #20 to Pearl Harbor, the #23 and #24 to Diamond Head, and the #22 to Hanauma Bay.
Where to stay for this list
First-timers should stay in Waikiki: you walk to the beach, the aquarium, the zoo, and the Friday fireworks, and every bus and trolley on this list starts nearby. For a deeper cut, our complete guide to things to do in Honolulu covers the neighborhoods, markets, and day-by-day itineraries this ranked list skips.
Frequently Asked Questions
How many days do you need in Honolulu?
Four to six days is the sweet spot for a first visit. That gives you one full day each for Pearl Harbor and a beach day, plus time for Diamond Head, Hanauma Bay, and a museum or two, without rushing. Short on time? Three packed days can cover the top five on this list if you lock in reservations first. Anything beyond a week leaves room for day trips like the North Shore.
Is Honolulu worth visiting?
Yes, especially for a first trip to Hawaii. Honolulu pairs blockbuster sights, Pearl Harbor and Diamond Head, with a real working city: museums, markets, and food you will not find on the resort-heavy neighbor islands. It is also the easiest Hawaiian city to visit without a car. Beach purists may prefer Maui or Kauai, but for a first trip, Honolulu delivers the most variety per day.
Do I need a car in Honolulu?
No, not for this list. Waikiki is walkable, and TheBus, about $3 a ride (confirm current fares), reaches Pearl Harbor, Diamond Head, and Hanauma Bay directly. The Waikiki Trolley Red Line runs to Iolani Palace and downtown. Rent a car only for windward-side or North Shore day trips, where buses run infrequently and trailhead parking is easier with your own wheels.
Which Honolulu attractions need reservations?
Book three things the moment your dates are set. The USS Arizona Memorial boat program opens on recreation.gov 56 days ahead at 3 PM Hawaii time. Hanauma Bay reservations open two days ahead at 7 AM Hawaii time and sell out within minutes. Diamond Head needs a timed entry slot, and Iolani Palace sells tickets online only with no walk-ups. Everything else on this list is walk-in friendly.
Are Honolulu beaches free?
Yes. Every beach in Hawaii is public, so Waikiki, Ala Moana, and Kailua cost nothing to enjoy. What you pay for is access to special places: Hanauma Bay charges $25 for ages 13 and up because it is a protected marine preserve, and the Pali Lookout charges $7 for parking. Beach chairs, umbrellas, and parking are the usual add-ons.
What is the best time of year to visit Honolulu?
April to May and September to November are the sweet spots: warm weather, thinner crowds, and generally lower hotel rates than the winter holidays. December through April brings whale season and big-wave surf on the North Shore, spectacular to watch but dangerous for swimming, so stick to Waikiki and the south shore for ocean dips in winter.
Book your Pearl Harbor and Hanauma Bay reservations before anything else, because those two slots shape the whole trip. Then work down the planning table, pick your top five, and skim a full Honolulu travel guide for the neighborhoods and day trips this list skipped. Honolulu has a way of turning first visits into return trips.