Difficulty
Moderate
Trail Length
2.4 miles
Trail Type
Out And Back
Elevation Gain
350 ft
About Koakanini Falls
Koakanini Falls is a quiet, lesser-known waterfall tucked into the Hilo Watershed Forest Reserve on Hawai‘i island. Managed by the State Department of Natural Resources (SDNR) and designated an SCA, the falls are framed by lush tropical vegetation and offer a tranquil, “hidden gem” experience away from busier visitor sites. The setting is ideal for hikers seeking native forest ambience and a peaceful waterside stop. Visitors typically reach the falls via a moderate 2.4‑mile out-and-back route that climbs roughly 350 feet. Because the trail and surrounding land are managed by SDNR within the Hilo Watershed Forest Reserve, please respect SCA protections, pack out what you pack in, and check with SDNR for any access updates. The relatively short approach and modest elevation gain make Koakanini Falls a rewarding half-day outing for those comfortable on uneven forest trails.
The Setting
Koakanini Falls sits at 1,453 feet within Hilo Watershed Forest Reserve, fed by the Wailuku River, in the foothills of Hawaii.
Trail & Hike Details
The Approach
The moderate 2.4-mile out-and-back trail gains 350 feet of elevation on the way to the falls.
Trail Description
Trail type: out-and-back. Distance: 2.4 miles. Elevation gain: ~350 feet. Difficulty: moderate. This access route is a short, moderate hike through the Hilo Watershed Forest Reserve managed by SDNR (designation: SCA). Official USFS trail surface/grade/class data are not provided for this route; the trail is recorded primarily by local land management rather than USDA Forest Service records. Hikers should prepare for typical forest trail conditions, bring adequate footwear and water, and consult SDNR for current trail conditions before heading out.
What to Expect
Visitors can expect a tranquil environment with lush greenery and the soothing sound of cascading water. The falls may be seasonal, so water flow could vary depending on recent rainfall.
Accessibility
The trail is not wheelchair accessible. Uneven terrain and elevation changes require steady footing.
Frequently Asked Questions
🐶 Are Dogs Allowed at Koakanini Falls?
❌ Dogs are not allowed
Are There Any Fees or Permits Required?
🆖 No fees required
🏊 Is There Swimming at Koakanini Falls?
❌ Swimming is not allowed
When to Visit
The falls can typically be visited year-round, but the best time to visit may be after recent rainfall to ensure a stronger water flow.
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
Trails in Hawaii can be slippery and muddy, especially after rain. Visitors should wear appropriate footwear and exercise caution. Flash flooding may occur in some areas, so check weather conditions before visiting.
Current Water Conditions
49 ft³/s
Current discharge — how much water is flowing
About average for this time of year
Based on 96 years of record
2.39 ft
Water depth at gauge
7-Day Discharge Trend
What does this mean for your visit?
Flow is about average for this time of year.
About This Gauge
Know when to go.
Get a free email alert when waterfalls near Hilo hit peak flow. We only send when conditions are worth the trip — no weekly newsletters, no spam.
Weather Forecast
Location & Access
Getting There
Specific directions to Koakanini Falls are not widely documented. Visitors are advised to consult local guides or reliable trail resources for the most accurate information.
Get Directions on Google MapsParking
Parking availability is unclear. Visitors should check with local authorities or nearby accommodations for parking options.
Elevation
1453 feet above sea level
Coordinates
19.708569° N, -155.164504° W
Land Management
Managed by SDNR
Visitor Tips & Gear
Bring sturdy footwear, as trails in Hawaii can be muddy and slippery. Check weather conditions before visiting, and consider hiring a local guide for assistance.
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With 2.4 miles and 350 ft of elevation gain, sturdy boots and trekking poles will help on this moderate trail. Icy conditions are common in winter — traction cleats are a smart addition.
Columbia Watertight II Rain Jacket
Packs into its own pocket, seam-sealed, and keeps you dry from spray and surprise rain.
Earth Pak Waterproof Dry Bag
Keeps your phone and gear dry when waterfall mist soaks everything else.
Waterproof Phone Pouch (AiRunTech)
Cheap insurance — take photos right next to the falls without killing your phone.
Timberland Euro Sprint Mid Waterproof
Trusted waterproof boot with premium leather and grippy rubber sole — reliable on rocky, wet trails.
TrailBuddy Trekking Poles
Lightweight aluminum, cork grips, and flip-locks that actually hold — a best-seller for good reason.
Kahtoola MICROspikes
Cult-favorite traction cleats that grip ice and wet rock — essential for winter waterfall hikes.
Where to Stay
SCP Hilo Hotel
Somewhere over the Rainbow Loft with AC Hilo
Grand Naniloa Hotel, a Doubletree by Hilton
Hawaii Magic Skies B&B Farmstay
Browse vacation cabins and private rentals nearby
Unique outdoor stays — tents, yurts, and treehouses
Rent a campervan or RV for your waterfall road trip
Some links are affiliate links. We may earn a commission at no extra cost to you.
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Nearby Attractions
Hawaii offers numerous natural attractions, including other waterfalls, beaches, and hiking trails. Consult local tourism resources for nearby points of interest.
Wildlife
The area may feature native Hawaiian flora and fauna, including tropical birds and plants. Be respectful of the natural environment.
Cities near Koakanini Falls
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