Live Conditions · 6 ft³/s · Lower than usual

Hāloku Falls

Hawaii

By Armen Suny · Last verified May 2026

Oloku'i Natural Area Reserve SCA · SDNR

Difficulty

Hard

Trail Length

22.0 miles

Trail Type

Out And Back

Elevation Gain

5 ft

About Hāloku Falls

Hāloku Falls tumbles into the lush, remote Kalalau Valley on Kauai’s famed Nā Pali Coast, framed by verdant cliffs and an atmosphere of wild solitude. The falls and surrounding tract sit within the Oloku'i Natural Area Reserve — a State-designated SCA owned and managed by SDNR — which helps preserve the valley’s native plants and scenic canyon walls. The view of the drop from the valley and the sense of isolation make Hāloku a memorable destination for experienced visitors who make the effort to reach it. Access is limited to rugged approaches, most commonly the Kalalau Trail or by boat into the valley. Reaching Hāloku rewards hikers with dramatic coastal panoramas and dense, tropical vegetation, but the final approach may require picking through unmarked paths inside the reserve. Plan for a serious day (or multi-day) outing: the approach is remote and the terrain is steep and variable, so pack accordingly and respect preserve rules managed by SDNR.

The Setting

Hāloku Falls sits at 1,378 feet within Oloku'i Natural Area Reserve, in the foothills of Hawaii.

Nearby Falls Worth Visiting

Puʻukaʻōkū Falls, the tallest waterfall in Hawaii at 2,756 feet, lies 0.5 miles to the east. Also nearby: Kahiwa Falls (1749 ft, 3.4 mi) and Pāpalaua Falls (1200 ft, 3.5 mi).

Trail & Hike Details

The Approach

The hard 22.0-mile out-and-back trail gains 5 feet of elevation on the way to the falls.

Trail Description

Kalalau Trail (approach to Kalalau Valley and Hāloku Falls) — 22.0 miles round-trip as commonly recorded for a full out-and-back route; classified as hard difficulty with an elevation gain figure listed at 5 feet in available route data. The route is iconic and challenging: steep climbs, narrow coastal paths, frequent stream crossings, and stretches of exposed, rugged terrain. The final descent into Kalalau Valley requires careful route-finding and may involve unmarked, primitive paths within the Oloku'i Natural Area Reserve (managed by SDNR). Conditions are variable and can be muddy or slippery; this is a remote, backcountry trail suited to experienced hikers prepared for limited services.

What to Expect

Visitors can expect a remote and rugged experience with breathtaking views of the Nā Pali Coast and the towering Hāloku Falls. The area is known for its natural beauty, but the trail is physically demanding and requires preparation. Weather conditions can change rapidly, and stream crossings may be hazardous after heavy rains.

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 Hāloku Falls?

❌ Dogs are not allowed

Are There Any Fees or Permits Required?

🤑 Fee: $35.00
Permit required
A permit is required for hiking beyond Hanakapiai Beach and for camping in the Kalalau Valley. Permits can be obtained through the Hawaii Department of Land and Natural Resources.

🏊 Is There Swimming at Hāloku Falls?

❌ Swimming is not allowed

When to Visit

spring summer fall winter

The best time to visit is during the dry season, typically from May to September, to avoid heavy rains and hazardous trail conditions.

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 trail is strenuous and includes narrow paths with steep drop-offs. Stream crossings can be dangerous, especially after rain. Visitors should be prepared for sudden weather changes and carry sufficient supplies. Cell phone service is unreliable in the area.

Current Water Conditions

Updated about 2 hours ago Barely Flowing

6 ft³/s

Current discharge — how much water is flowing

Lower than usual for this time of year

Based on 70 years of record

1.23 ft

Water depth at gauge

7-Day Discharge Trend

What does this mean for your visit?

Flow is lower than usual for this time of year.

About This Gauge

USGS 16408000
4.5 miles from waterfall
Drainage: 4 sq mi
Altitude: 250 ft

7-Day Flow Outlook

Based on the USGS gauge Waikolu Str blw pipe nr Kalaupapa, Molokai, HI (7 km away).

High confidence
Barely Flowing right now
6 cfs
→ Holding steady
8121212121212TodayTomorrowWedThuFriSatSun

Today

Barely Flowing

7 cfs

3/10

Tomorrow

Low

7 cfs

4/10

Wed

Low

7 cfs

4/10

Thu

Low

7 cfs

4/10

Fri

Low

7 cfs

4/10

Sat

Low

7 cfs

4/10

Sun

Low

7 cfs

4/10

Best window: Tomorrow — low flow, chance rain showers (trip score 4/10).

Best time of year: this gauge typically runs highest from late February to late May, peaking in April.

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 Ualapue hit peak flow. We only send when conditions are worth the trip — no weekly newsletters, no spam.

Weather Forecast

Location & Access

Getting There

Hāloku Falls is located deep within the Kalalau Valley on the Nā Pali Coast. Access typically requires hiking the Kalalau Trail, a strenuous 11-mile (one-way) trek starting at Ke'e Beach. Alternatively, the falls may be viewed from a boat or helicopter tour, though these options do not allow for close access.

Get Directions on Google Maps

Parking

Parking is available at the trailhead at Ke'e Beach, but it is limited and requires advanced reservations due to high demand.

Elevation

1,378 feet above sea level

Coordinates

21.160713° N, -156.859289° W

Land Management

Oloku'i Natural Area Reserve SCA

Managed by SDNR

Visitor Tips & Gear

Plan ahead and secure permits well in advance. Wear sturdy hiking shoes, bring plenty of water, and pack light but essential supplies. Be prepared for changing weather and challenging terrain. Consider hiring a guide if unfamiliar with the trail.

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This challenging 22.0 miles trail gains 5 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

Other waterfalls in the Kalalau Valley, Nā Pali Coast State Park, Ke'e Beach, Hanakapiai Falls (on the same trail but shorter distance).

Wildlife

The area is home to native Hawaiian birds, feral goats, and a variety of plant species. Visitors may also encounter insects and other small wildlife.

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