Kasnyku Falls
Photo Credits (5)
Difficulty
Moderate
Trail Length
2.4 miles
Trail Type
Out And Back
Elevation Gain
350 ft
About Kasnyku Falls
Kasnyku Falls tumbles from Kasnyku Lake down a steep, rocky slope into Kasnyku Bay on Baranof Island, offering a dramatic, remote cascade framed by the coastal forest of southeast Alaska. The falls sit within the Tongass National Forest and are managed by the U.S. Forest Service, so expect a wild, largely undeveloped setting where the sound of falling water and the rugged shoreline are the main attractions. There is no formal maintained USFS trail to the base of the falls, and most visitors view Kasnyku Falls from the water or by following an informal land approach. Those who hike in typically follow an unmarked route that totals roughly 2.4 miles as an out-and-back with about 350 feet of elevation gain; the approach is considered moderate but can be slippery and uneven in places. The nearest public cabin/camp is Baranof Lake Cabin, about 14.2 km away, so plan logistics and safety accordingly.
Trail Description
No official USFS trail number leads directly to Kasnyku Falls; there is no maintained, signed trail to the cascade. Recreational access is primarily by boat or via an informal foot route. When approached on land, the commonly used informal route is described as an out-and-back totaling about 2.4 miles with approximately 350 feet of elevation gain and a moderate difficulty rating. Surface and formal trail class are unrecorded—expect uneven, rocky shoreline and potentially slippery sections—so bring proper footwear, be prepared for unmarked terrain, and treat the route as a wilderness scramble rather than a developed trail. Managed land unit: Tongass National Forest (U.S. Forest Service).
What to Expect
Expect a remote and serene experience with breathtaking views of the waterfall cascading into the bay. Wildlife sightings, such as eagles, seals, and bears, are common in the area. The falls are surrounded by dense forest and rocky terrain, adding to the sense of wilderness.
Accessibility
The falls are not wheelchair accessible due to the remote location and rugged terrain.
Seasonal Closures
There are no formal seasonal closures, but access may be limited during winter months due to weather conditions.
Safety Information
Visitors should exercise caution around the falls, as the terrain can be slippery and uneven. Be prepared for rapidly changing weather conditions and carry appropriate gear. Wildlife encounters are possible, so maintain a safe distance and store food securely.
Location & Access
Getting There
Kasnyku Falls is accessible only by boat or floatplane, as it is located in a remote area of Baranof Island. Visitors typically depart from Sitka or other nearby towns to reach the falls. Once at Kasnyku Bay, the waterfall is visible from the water, and no formal trail leads directly to it.
Get Directions on Google MapsParking
No parking is available as the area is only accessible by boat or floatplane.
Elevation
203 feet above sea level
Coordinates
57.191111° N, -134.832500° W
Land Management
Managed by USFS
Visitor Tips & Gear
Plan your visit carefully, as access requires a boat or floatplane. Wear sturdy footwear if you plan to explore the area near the falls, and bring rain gear as weather conditions can change rapidly. Binoculars are recommended for wildlife viewing.
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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. Sun exposure on the trail makes good sun protection a must in summer.
Polarized Sunglasses (Knockaround)
Cuts glare off the water so you actually see the falls — and your photos turn out better too.
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.
Where to Stay
Find hotels, lodges, and B&Bs near the trailhead
Browse vacation cabins and private rentals nearby
Unique outdoor stays — tents, yurts, and treehouses
Rent a campervan or RV for your waterfall road trip
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Nearby Campground
BARANOF LAKE CABIN
8.8 miles away · 1 sites
Overview Baranof Lake Cabin sits on the shores of greenish-blue Baranof Lake on the southwestern edge of Baranof Lake, 20 air miles east of of Sitka, Alaska. The cabin is generally available June through October, and makes an excellent base for experiencing this corner of Alaska. This is a remote site. The cabin can be accessed by a 25-minute floatplane trip, weather permitting. In poor weather and low clouds, flying time can double, as flights must go the northern route around Baranof Island. Vi
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Explore Alaska springsFrequently Asked Questions
🐶 Are Dogs Allowed at Kasnyku Falls?
❌ Dogs are not allowed
Are There Any Fees or Permits Required?
🆖 No fees required
🏊 Is There Swimming at Kasnyku Falls?
❌ Swimming is not allowed
Best Seasons to Visit
The best time to visit is during the summer months (June to August) when the weather is more favorable, and the falls are typically at their most accessible.
Additional Information
Nearby Attractions
Nearby attractions include Kasnyku Lake, Baranof Warm Springs, and the surrounding Tongass National Forest, which offers opportunities for hiking, fishing, and wildlife viewing.
Wildlife
The area is home to a variety of wildlife, including bald eagles, bears, seals, and salmon. Visitors should be prepared for potential wildlife encounters and follow safety guidelines.
