Diamond Head Summit Trail climbs 560 feet in 0.8 miles from crater floor to rim, passing through a 225-foot tunnel and a spiral staircase built inside a 1911 Fire Control Station before opening onto 360-degree views of Waikiki, Honolulu, and the southeastern Oahu coastline.
Hawaii’s hikes deliver more bang-for-your-buck than anywhere else in the U.S. — 20 minutes of effort reaches desktop-wallpaper viewpoints, and two hours reaches Lord-of-the-Rings ridges most photographers never reach.
Diamond Head is the obvious first hike on Oahu for a reason — the views are genuinely spectacular and the trail is doable for most fitness levels. But it requires advance planning now: non-residents need reservations up to 30 days ahead, and sunrise slots sell out within hours of opening. If you’re willing to trade the famous crater for equally stunning coastal views with zero booking hassle, Makapu’u Lighthouse Trail or the Koko Crater Railway steps deliver comparable payoff without the reservation stress.
First-time visitors
Sunrise chasers
Moderate fitness
This guide covers Diamond Head in detail — the reservation system, trail logistics, and what you’ll actually see — then rounds up the best hikes across Oahu, Maui, Kauai, and the Big Island so you can match a trail to your island and your energy level.
| Trail | Island | Distance | Difficulty | Reservation Required |
|---|---|---|---|---|
| Diamond Head Summit Trail | Oahu | 1.6 mi round trip | Moderate | Yes |
| Makapu’u Lighthouse Trail | Oahu | 2 mi round trip | Easy | No |
| Koko Crater Railway Trail | Oahu | ~1 mi one way | Strenuous | No |
| Pipiwai Trail | Maui | 4 mi round trip | Moderate | No (park entry fee) |
| Sliding Sands Trail | Maui | Up to 11.2 mi one way | Strenuous | Yes (sunrise entry) |
| Kilauea Iki Trail | Big Island | 4 mi loop | Moderate | No (park entry fee) |
| Kalalau Trail (first 2 mi) | Kauai | 2 mi one way | Moderate | Yes |
| Awa’awapuhi Trail | Kauai | 6.4 mi round trip | Moderate | No |
The table above gives you a quick snapshot of the best trails across Hawaii’s main islands. Below we’ll walk through each one in more detail, starting with the one everyone asks about first.
Diamond Head Summit Trail (Le’ahi) — Oahu’s Signature Hike
Diamond Head’s crater formed roughly 300,000 years ago during an eruption from the Ko’olau range. The Hawaiian name Le’ahi comes from the ridge’s resemblance to the dorsal fin of an ahi (tuna). In 1908, the U.S. Army built the trail as part of the island’s coastal artillery defense system, connecting the crater floor to the summit’s Fire Control Station, completed in 1911. That military history is still visible at the top, where bunkers built in 1915 line the crater rim.
The trail starts on a paved surface at the crater floor, then transitions to dirt and volcanic tuff after about 0.2 mile. Switchbacks lead up the interior slope of the crater, passing through haole koa forest with views back down into the bowl. A pre-war concrete landing at the top of the switchbacks still holds remnants of the winch and cable system used to lift materials from the crater floor.
From there you’ll climb 74 steps into a long, narrow, curving lighted tunnel — it’s cool, echoey, and can get crowded as everyone funnels through in both directions. Large backpacks may need to be removed to squeeze through. At the tunnel’s end, two routes split. The right route (Route A) takes 99 steep stairs up into the Fire Control Station, then a 52-step spiral staircase to the top. The left route (Route B) is the easier option: 82 steps on a gradual staircase with views toward Hawaii Kai and Makapu’u, followed by 54 steps to the same summit. Most hikers take the left route up and the right route down to experience the bunker and spiral staircase.
Turn left when you exit the tunnel for the easier route up. On the descent, go through the bunker (right route) to see the spiral staircase and Fire Control Station — it adds about 5 minutes but is worth the detour.
The summit delivers 360-degree views that stretch from Koko Head in the southeast to the Wai’anae coast in the west, with Waikiki Beach and Honolulu’s high-rises directly below. On clear days you can spot the neighbor islands Moloka’i, Lana’i, and Maui on the eastern horizon. Diamond Head Lighthouse, built in 1917, is visible from the summit but closer views and better photo angles are available on the trail itself.
No water is available on the trail — fill up at the drinking fountains near the parking lot before you start. The trail is fully exposed to the sun, so bring at least 16 ounces of water per person and reef-safe sunscreen. Closed-toe shoes with good grip are required; sandals or flip-flops are inadequate for the steep staircases and rocky sections.
Reservations and Fees
Non-residents must book advance reservations at gostateparks.hawaii.gov. Slots open 30 days ahead at midnight Hawaii Standard Time, and the popular sunrise windows (6:00–7:00 a.m.) sell out within hours. The entry fee is $5 per person for non-residents; children 3 and under are free. Parking costs $10 per vehicle inside the crater. Hawaii residents enter and park free with a Hawaii ID or driver’s license.
The monument is open daily 6:00 a.m. to 6:00 p.m. except Christmas Day and New Year’s Day. The last reservation slot is at 4:00 p.m., with entry allowed until 4:30 p.m. All visitors must exit by 6:00 p.m. — staying beyond closing is trespassing. Vehicle parking inside the crater is booked in two-hour time slots starting at 6:00 a.m.; you can book two consecutive slots if you want more time. Walk-in and drop-off visitors have one-hour entry windows.
Arriving without a reservation on a weekend or holiday means you may be turned away at the gate. Walk-in tickets exist but sell out early and are never guaranteed. Book your slot as soon as your date opens — waiting even a day can mean losing the time you wanted.
Getting There and Parking
From Waikiki, take Kalakaua Avenue east, cross Kapahulu Avenue, continue straight, and take the left fork onto Monsarrat Avenue, which becomes Diamond Head Road. The crater access road is on the right across from Kapiolani Community College. The drive from Waikiki is about 2.3 miles and takes roughly 5 minutes in normal traffic.
Parking inside the crater holds about 300 cars and fills quickly — by 8 a.m. in peak season it’s often full. If you don’t have a vehicle reservation, free street parking is available on Diamond Head Road outside the crater, though you’ll need to walk about half a mile to the trailhead. Rideshare drop-offs are allowed at the gate. The Bus #23 line from Waikiki also arrives at the monument. A round-trip shuttle from Waikiki is another option — several operators run morning departures with bottled water and park fees included.
After your hike, a pineapple stand outside the crater sells cold drinks and Dole Whip — cash only.
More Oahu Hikes Worth Your Time
If Diamond Head’s reservation system feels like too much planning, or you’re visiting the island more than once, several other Oahu trails deliver similar or better views without the booking hassle.
Makapu’u Lighthouse Trail
This 2-mile paved round trip follows the sea cliffs on Oahu’s windward coast. No reservation is needed and there’s no fee. The trail climbs gently to a clifftop lookout with views of the Makapu’u Lighthouse, the offshore islets, and the entire windward coastline. In winter (December through April), humpback whale spouts are visible from the lookout — bring binoculars. The paved surface makes this a good option for families with kids or anyone who wants a solid workout without technical terrain.
Koko Crater Railway Trail
For a more intense physical challenge, Koko Crater Railway Trail climbs 1,048 abandoned railroad ties — the remains of a military tramway — straight up the inner rim of Koko Crater. It’s steep, relentless, and requires no technical gear, but your legs will feel it. The 360-degree summit views take in Hanauma Bay, the southeast coast, and Diamond Head in the distance. There’s free parking at the Koko Crater Botanical Garden lot. Sunrise is the best time to beat the heat and crowds.
Manoa Falls Trail
Located just above Honolulu in Manoa Valley, this 1.6-mile round trip winds through bamboo and kukui nut forest to a 150-foot waterfall. The trail is muddy year-round — wear shoes with good traction. Weekday parking is free; weekends can be tight. It’s a quick, shaded escape from the city heat, though the waterfall itself is best viewed after a rain when the flow is strong.
Maui: Two Iconic Trails, Very Different Experiences
Pipiwai Trail
In the Kipahulu section of Haleakala National Park near Hana, Pipiwai Trail runs 4 miles round trip through a dense bamboo forest to 400-foot Waimoku Falls. The trail crosses a stream and passes by the massive banyan tree before the bamboo grove closes in around you — the stalks tower overhead and the wind creates a hollow, rustling sound. At the end, Waimoku Falls drops vertically down a rock face into a pool. It’s one of the finest hikes in the Pacific, and it requires no reservation beyond the park entry fee.
Sliding Sands Trail (Keoneheehee)
From Haleakala’s 10,023-foot summit, Sliding Sands Trail descends into the volcanic crater through a landscape of cinder cones, colored rock, and silence that feels otherworldly. The full descent is 11.2 miles one way with 3,000 feet of elevation change, but a manageable day hike is to go 2–3 miles down and then return the way you came. You’ll pass silversword plants — found only on Haleakala — and walk on volcanic cinders that shift underfoot. A timed entry reservation for sunrise at recreation.gov is required to enter the summit area during those hours.
On Pipiwai Trail, start early — the parking lot at Kipahulu fills by mid-morning, and the afternoon sun disappears behind the valley walls, leaving the bamboo forest dim and cool. Bring mosquito repellent; the stream crossings and damp forest are prime habitat.
Big Island: Walk Across a Cooled Lava Lake
Kilauea Iki Trail
In Hawaii Volcanoes National Park, Kilauea Iki Trail is a 4-mile loop that descends 400 feet into the hardened lava lake of the 1959 eruption. You walk across a crater floor that was molten rock within living memory — steam vents still hiss from cracks in the crust. The trail passes through lush rainforest on the return, with views of the surrounding caldera rim. Check the NPS status page before you go, as trail closures occur with volcanic activity. The park entry fee is $30 per vehicle, valid for seven days.
Halema’uma’u Trail
This trail circles the active Kilauea summit caldera, which has ongoing lava activity in 2026. The views change constantly — the crater floor shifts with each eruption cycle. Before hiking, check the NPS status page for closures, as volcanic activity can shut down sections without warning. This is not a trail for a set schedule; flexibility is key.
Kauai: The Na Pali Coast’s Two Faces
Kalalau Trail
The Kalalau Trail runs 11 miles one way along the Na Pali Coast, with dramatic cliff faces, hidden sea caves, and waterfalls dropping directly into the Pacific. For day hikers, the first 2 miles to Hanakapiai Beach are accessible with a day permit through the Ha’ena State Park reservation system at gostateparks.hawaii.gov. Beyond Hanakapiai requires an overnight permit issued by lottery — permits sell out months ahead. The first two miles are strenuous enough: the trail climbs over sea cliffs on exposed, narrow paths with uneven footing and no guardrails.
Awa’awapuhi Trail
For a Na Pali coast view without the permit lottery, Awa’awapuhi Trail in Kokee State Park runs 6.4 miles round trip through forest to a sheer ridgeline that drops 2,500 feet straight down to the coast. The trail is less known than Kalalau and requires no permit. The final viewpoint is a knife-edge ridge with nothing between you and the ocean but air — it’s exposed and not for anyone uncomfortable with heights.
Practical Section: What You Need to Know Before You Go
Hawaii’s hiking conditions are different from mainland trails. The combination of high UV intensity, humidity, and rapid weather changes means preparation matters more than the distance suggests.
- Book Diamond Head, Ha’ena State Park, and Haleakala sunrise reservations online before your trip — these sell out weeks ahead.
- Start every hike by 7 a.m. at the latest. Afternoon clouds obscure summit views, and the midday heat on exposed trails can be dangerous.
- Bring at least 1 liter of water per hour of hiking. Humidity and UV deplete hydration faster than you’d expect at the same elevation on the mainland.
- Closed-toe shoes with grip are non-negotiable. Hawaii trails are rocky, muddy, or both — sandals and flip-flops are inadequate everywhere.
Water and Sun Protection
Bring more water than you think you need. Hawaii’s humidity and UV intensity deplete fluids faster than mainland hikes at the same elevation. At least 1 liter per hour is a good baseline. Reef-safe sunscreen with SPF 50 or higher is essential — the sun is strong even on overcast mornings. A wide-brimmed hat secured against the wind and polarized sunglasses also help.
Footwear and Gear
Closed-toe shoes with good grip are required on virtually every Hawaii trail. The first 0.2 mile of Diamond Head is paved, but the rest is volcanic tuff, dirt, and uneven stairs. Muddy sections are common on Manoa Falls, Pipiwai, and any trail after rain. Hiking shoes or sturdy sneakers are fine for most trails; technical boots aren’t necessary unless you’re doing the full Kalalau or Sliding Sands.
Weather and Timing
Trade winds make the morning the clearest window for summit and ridgeline views — afternoon clouds typically roll in by 11 a.m. Start every hike by 7 a.m. at the latest. Check the NWS forecast before heading out, as conditions change rapidly, especially on higher-elevation trails like Haleakala and Kilauea Iki.
Safety and Health
Leptospirosis is a bacterial infection present in Hawaii’s streams and standing freshwater after heavy rains. Avoid swimming in or drinking from any freshwater source on trail. If you get dizzy or overheated, stop in a shaded area immediately — heat exhaustion is the most common issue on exposed trails like Diamond Head and Koko Crater.
Before You Go — Hawaii Hiking FAQ
Do I really need reservations for Diamond Head?
Yes — non-residents must book in advance at gostateparks.hawaii.gov. Slots open 30 days ahead at midnight HST. Sunrise windows (6:00–7:00 a.m.) sell out within hours. Book as soon as your date becomes available.
What’s the hardest hike on this list?
Koko Crater Railway Trail on Oahu — 1,048 railroad ties straight up the side of a crater with no switchbacks. It’s short but relentless. Sliding Sands Trail on Maui is harder in total distance and elevation change, but you can turn around after 2–3 miles for a manageable experience.
Which trail is best for families with young kids?
Makapu’u Lighthouse Trail on Oahu — paved, gentle grade, 2 miles round trip, and the winter whale viewing is a built-in reward. Diamond Head’s stairs and tunnel can be tough for small children, and the summit is not suitable for strollers or wheelchairs.
When is the best time of year to hike in Hawaii?
April through October is the dry season on most islands. Winter months (November through March) bring rain, especially on windward coasts and higher elevations, which makes trails muddy and slippery. That said, winter is the best time for whale sightings from coastal trails like Makapu’u.
Can I hike Kalalau Trail without a permit?
No — the first 2 miles to Hanakapiai Beach require a day permit from Ha’ena State Park’s reservation system. Beyond that requires an overnight permit issued by lottery. Both sell out months ahead. If you want Na Pali views without the permit, hike Awa’awapuhi Trail in Kokee State Park instead.
Closing
Hawaii’s trails are the rare kind where the payoff arrives fast — 20 minutes of effort on Diamond Head puts you above Waikiki with the Pacific stretching to the horizon, and two hours on Pipiwai drops you into a bamboo cathedral that feels a world away from any resort. The common thread across all these hikes is that the best experience comes from planning ahead, starting early, and treating the trail with the respect it deserves — the islands reward preparation with views that no photo quite captures.
If you’re building a Hawaii itinerary around outdoor adventures, check out our guide to witnessing lava after dark on the Big Island for another once-in-a-lifetime hiking experience.
References
Hawaii DLNR. “Diamond Head State Monument.” ↗
Hawaii State Parks. “Diamond Head Reservation Portal.” ↗
National Park Service. “Hawaii Volcanoes National Park — Current Conditions.” ↗
Recreation.gov. “Haleakala National Park — Sunrise Reservation.” ↗
If you’re planning a multi-island trip, don’t miss our guides to whale watching from coastal trails and finding Maui’s hidden red sand beach for more off-the-beaten-path adventures.
Explore Places to Stay
Feel free to zoom in and out of the map to explore the area and find the best place to stay for your trip.