Hiʻilawe Falls waterfall
Nearby gauge (Alakahi Stream) · 14 ft³/s · Higher than usual

Hiʻilawe Falls

Hawaii • 1450 ft

By Armen Suny · Last verified Sep 2026

LiDAR & 3D terrain

Difficulty

Hard

Trail Length

4.0 miles

Trail Type

Out And Back

Elevation Gain

900 ft

About Hiʻilawe Falls

Hiʻilawe Waterfall on Hawaiʻi Island is one of the tallest and most powerful waterfalls in the state, dropping about 1,450 feet (440 m) with a primary free-fall of roughly 1,201 feet (366 m) into the lush Waipiʻo Valley along Lalakea Stream. The ribbon-like cascade framed by steep, tropical valley walls is a dramatic sight when water is flowing, and its scale makes it a must-see landmark for visitors to the northern coast of the Big Island. Visitors should know that Lalakea Stream above the falls has been diverted for irrigation, so Hiʻilawe can be intermittent and may run dry even during normally wet months such as March. Approaching the base of the falls requires navigating steep, challenging terrain and sections of private property, so plan accordingly and respect any landowner restrictions and local guidance.

The Setting

Hiʻilawe Falls sits at 1,358 feet in the foothills of Hawaii. At 1,450 feet, it is among the taller waterfalls in Hawaii.

Height: 1450 feet

Trail & Hike Details

Trailhead Falls
4.0 mi distance 900 ft climbed

The Approach

The hard 4.0-mile out-and-back trail gains 900 feet of elevation on the way to the falls.

Trail Description

Trail stats: 4.0 miles (out-and-back), ~900 feet elevation gain, rated hard. The route involves a steep descent into Waipiʻo Valley and then travel across streams and private parcels to get closer to the falls. Expect muddy, slippery sections and uneven footing; the trail is physically demanding and requires good footwear and experience with rough terrain. Note also that the falls’ flow is seasonally and operationally variable—Lalakea Stream has been diverted for irrigation—so the falls may have little or no water. Access to the immediate base of Hiʻilawe may be restricted due to private land ownership; check local access rules before attempting the approach.

What to Expect

The falls plunge a dramatic 1450 feet.

Accessibility

The trail involves steep, uneven terrain with significant elevation change and is not accessible to mobility devices.

Frequently Asked Questions

🐶 Are Dogs Allowed at Hiʻilawe Falls?

❌ Dogs are not allowed

Are There Any Fees or Permits Required?

🆖 No fees required
Permit required
Access to certain areas of the Waipiʻo Valley, including the base of Hiʻilawe Falls, may require permission from private landowners. Visitors should check local regulations and consider guided tours for easier access.

🏊 Is There Swimming at Hiʻilawe Falls?

❌ Swimming is not allowed

When to Visit

spring summer fall winter

Hiʻilawe Falls flows year-round, but the best time to visit is after recent rainfall when the waterfall is at its fullest. However, heavy rains can make the trail more dangerous, so plan accordingly.

Seasonal Access

The best time to visit is Spring, Summer, Fall, and Winter. Heavy rains during wet season (November through March) bring higher flow but can make trails slippery.

Safety Information

The road into Waipiʻo Valley is steep and narrow, requiring a 4WD vehicle. The trail can be slippery and muddy, especially after rain. Visitors should be cautious of flash floods and respect private property boundaries.

Current Water Conditions

Updated about 1 hour ago Roaring

These readings come from the USGS gauge on Alakahi Stream, 5.1 miles away, not on Hiʻilawe Falls's own stream. Use them as a sign of whether the area is running wet or dry.

14 ft³/s

Current discharge — how much water is flowing

Higher than usual for this time of year

Based on 60 years of record

2.47 ft

Water depth at gauge

7-Day Discharge Trend

What does this mean for your visit?

The water is flowing higher than usual for this time of year.

About This Gauge

This gauge is on a nearby waterway and may not reflect exact conditions at the falls.

USGS 16725000
5.1 miles from waterfall
Drainage: 1 sq mi
Altitude: 3,900 ft

7-Day Flow Outlook

Based on the USGS gauge Alakahi Stream near Kamuela, HI (8 km away).

High confidence
Strong right now
6 cfs
→ Holding steady
94989094989094TodayTomorrowTueWedThuFriSat

Today

Roaring

7 cfs

6/10

Tomorrow

Roaring

7 cfs

6/10

Tue

Roaring

9 cfs

9/10

Wed

Roaring

8 cfs

6/10

Thu

Roaring

10 cfs

6/10

Fri

Roaring

10 cfs

8/10

Sat

Roaring

8 cfs

6/10

Best window: Tue — roaring flow, mostly sunny (trip score 9/10).

Best time of year: this gauge typically runs highest from mid June to late July, peaking in July.

How we calculate this

This is a transparent outlook, not a precise forecast. We take the waterfall's current flow strength (how it ranks against its historical normal for today, from the nearest USGS stream gauge), carry that ranking forward along the gauge's seasonal curve, and nudge it for forecast rain. Confidence is highest for the next day or two and falls further out. Always check official conditions and your own judgment before visiting — high flows can be dangerous.

Know when to go.

Get a free email alert when waterfalls near Kukuihaele hit peak flow. We only send when conditions are worth the trip — no weekly newsletters, no spam.

Weather Forecast

The Terrain, Seen by LiDAR

Aircraft-mounted lasers measured this ground to within inches. Trees and buildings are digitally stripped away, leaving the bare shape of the land the water has carved.

The laser survey finds one clean step here: roughly 1,565 feet of drop concentrated at the brink. It lines up with the 1,450 feet the falls are usually credited with. Elevation at the pin is about 1,312 feet.

Steep ground runs through the entire stretch: about 421 feet of descent in the 500 feet above the pin and 904 feet in the 500 feet below it. Facing northeast, the falls stay mostly shaded, with soft, even light all day.

Aerial photo of the same ground around Hiʻilawe Falls near Kukuihaele, Hawaii, for comparison with the lidar view LiDAR bare-earth terrain around Hiʻilawe Falls near Kukuihaele, Hawaii, showing about 1,565 feet of drop, a single sheer drop, facing northeast
Aerial LiDAR bare earth

Drag to compare. The dot marks the waterfall. The frame is about a mile across.

Ground elevation
1,312 feet
Measured by 1-meter lidar
Drop at the falls
About 1,565 feet
Change in ground height within ~250 feet of the falls
Faces
Northeast
Mostly shaded, so the light stays soft and even all day.
Ground profile through the falls

A slice through the lidar ground surface, from above the falls to downstream (heading northeast).

Elevation data: USGS 3D Elevation Program. Aerial imagery: USGS The National Map. Public domain.

Location & Access

Getting There

Hiʻilawe Falls is located in the remote Waipiʻo Valley on the Big Island of Hawaii. Access to the valley is challenging, as it requires navigating a steep and narrow road that is only accessible by 4WD vehicles or on foot. Visitors can also join guided tours to explore the valley and view the falls.

Get Directions on Google Maps

Parking

Parking is available at the Waipiʻo Valley Lookout, but spaces are limited. Visitors should plan to arrive early to secure a spot.

Elevation

1,358 feet above sea level

Coordinates

20.094791° N, -155.596374° W

Visitor Tips & Gear

Wear sturdy hiking shoes and bring plenty of water. Be respectful of private property and follow all posted signs. Consider joining a guided tour for easier access and to learn more about the cultural significance of the area.

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This challenging 4.0 miles trail gains 900 ft in elevation — come prepared with proper hiking boots and trekking poles. Icy conditions are common in winter — traction cleats are a smart addition.

Additional Information

Nearby Attractions

Waipiʻo Valley Lookout, black sand beach in Waipiʻo Valley, and other waterfalls in the area.

Wildlife

The area is home to native Hawaiian birds and other wildlife. Visitors may also see taro fields and other agricultural features.

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