2
hikers
Thimbleberry-Heart Lake Trail
00:48
2.60km
100m
Hiking
Embark on an easy hike along the Thimbleberry-Heart Lake Trail, a 1.6-mile (2.6 km) route that winds through the lush forest ecosystems of Tongass National Forest. You will gain 338 feet (103 metres) in elevation, with most hikers completing the journey in about 47 minutes. As you explore, you will encounter picturesque streams and waterfalls, including the charming Thimbleberry Falls, before reaching the serene waters of Thimbleberry Lake and the pristine Heart Lake, known for reflecting the surrounding mountains. This trail offers a quick and accessible outdoor escape.
This trail is accessible year-round, making it a convenient option whenever you are ready to explore. You can reach the trailhead using public transport, with buses available that can carry bikes, offering a sustainable way to start your adventure. No specific permits are required for this hike, but it is always wise to wear sturdy hiking boots to navigate any uneven ground or potential muddy sections. Be aware that bears are known to frequent the area, especially when berries are ripe, so stay alert.
The Thimbleberry-Heart Lake Trail is a notable path within the region for its vibrant seasonal displays. In late summer and early fall, the abundant thimbleberry bushes transform the landscape with their rich red hues, adding a unique visual element to your hike. This trail provides an excellent opportunity to experience the diverse natural beauty of the Tongass National Forest, from its varied terrain to its tranquil lake views, all within an easy and manageable distance.
Last updated: April 23, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Waypoints
Start point
Parking
Get Directions
751 m
Thimbleberry Lake
Highlight • Lake
Tip by
2.01 km
Heart Lake
Highlight • Lake
Tip by
2.59 km
Blue Lake Road Trailhead
Highlight • Trail
This trailhead has a short access road that may be blocked by a gate. Per Sitka Trail Works, if the gate is closed you can park across from the Industrial Park and hike up the road to the trailhead. (Make sure not to block the gate.)
Tip by
2.60 km
End point
Way Types & Surfaces
Way Types
2.59 km
< 100 m
Surfaces
2.59 km
< 100 m
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Elevation
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Weather
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Today
Saturday 11 July
12°C
6°C
43 %
Additional weather tips
Max wind speed: 7.0 km/h
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This route was planned by komoot.
Frequently Asked Questions
Where can I park for the Thimbleberry-Heart Lake Trail?
You can access the trail from the Blue Lake Road Trailhead. Public transport is also an option, with buses capable of carrying bikes, making it easily accessible.
Is the Thimbleberry-Heart Lake Trail suitable for beginners or families?
Yes, this trail is generally considered easy to moderate, making it suitable for families and individuals with some hiking experience. The lower sections, rich with thimbleberries, are particularly engaging for younger hikers.
What is the terrain like on the trail?
The path is largely a gravel trail, but expect uneven ground with roots, rocks, and potentially muddy sections, especially after rain. While some sections involve uphill climbs, the trail has been recently refinished, making it a bit less steep from the south trailhead. Sturdy hiking boots are recommended for comfort and ankle support.
What can I see along the route?
The trail offers beautiful views of Thimbleberry Lake and the pristine Heart Lake, known for its reflective waters and panoramic vistas. You'll also pass through lush forest ecosystems, see thimbleberry bushes, and enjoy stream views, including Thimbleberry Falls.
Is the Thimbleberry-Heart Lake Trail dog-friendly?
Yes, dogs are allowed on the trail. However, it's always a good idea to keep them on a leash to ensure their safety and respect for other hikers and wildlife.
Do I need a permit or pay an entrance fee for the trail?
The Thimbleberry-Heart Lake Trail is located within the Tongass National Forest. Generally, there are no specific permits or entrance fees required for day hiking on trails like this within the forest. However, always check the latest regulations on the official Tongass National Forest website for any updates, especially if planning extended stays or specific activities.
What is the best time of year to visit the trail?
The trail is a popular year-round destination. In late summer and early fall, the thimbleberry bushes produce vibrant red berries. In summer, both lakes are popular for swimming, and in winter, they are great for ice skating. Be prepared for potentially muddy conditions after rain, regardless of the season.
What kind of wildlife might I encounter?
The area is known to have bears, especially when berries are ripe. It's important to be bear-aware, carry bear spray, and know how to use it. You'll also observe various local flora and fauna within the forest ecosystems.
How long does it typically take to hike this trail?
The estimated duration for completing the trail is around 48 minutes, covering a distance of approximately 2.6 kilometers (1.6 miles). This can vary based on your pace and how much time you spend enjoying the scenery at the lakes.
Are there any specific tips for hiking this trail?
For a potentially less steep ascent, consider starting from the south trailhead, as sections have been recently refinished. Remember to wear sturdy hiking boots due to uneven ground and potential mud. Also, be aware that while there are beautiful views, a portion of the trail runs under power lines.
Is the trail a loop or an out-and-back?
The Thimbleberry-Heart Lake Trail is primarily an out-and-back route. You can hike to Heart Lake and return the same way, or continue to the Blue Lake Road Trailhead.
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