more stats
1.3 miles
Distance
195 ft
Climb
-178 ft
Descent
00:18:20
Avg time
16 ft
Altitude change
268 ft
Altitude min
377 ft
Altitude max
361 ft
Altitude start
377 ft
Altitude end
0.2%
Grade
-52.7%
Grade max
23.6%
Grade min
3,346 ft
Distance climb
2,470 ft
Distance down
755 ft
Distance flat
00:18:20
Avg time

Gahnia Details

  • Activities
    • Mountain Bike
    • E-Bike
  • Riding Area
    Manly Dam
    Sydney
  • Difficulty Rating
    Black Diamond Rate
  • Voted Difficulty
    Blue (9 votes)
  • Local Popularity
    85 in Mountain Biking [+]
    • 80 in E-Biking
  • Global Ranking
    #11545 in Mountain Biking [+]
    • #793 in E-Biking
  • Trail Type
    Singletrack
  • Bike Type
    AM
  • Direction
    One Direction
    Popular Direction Shown
  • Climb Difficulty
    Blue
  • Physical Rating
    Hard
  • Trail Visibility
    Always easy to follow
  • Dogs Allowed
    Yes
  • eBike Allowed
    Yes up to Class 1
  • TTFs on Trail
    Bridge, Drop, Rock Face
  • Land Owner
    Northern Beaches Council

Gahnia Mountain Bike Track
IMBA rated: More difficult (blue)
Length: 2.15 km
Direction: One way
Recommended: Experienced mountain bike riders with good skills.

This is a one way, single width mountain bike track, to be ridden in the direction shown. Riders will find it challenging because it has variable surfaces and obstacles. Some steep sections have drop offs. Keep to the formed track and report any damage or track widening with reference to the nearest way marker.

Filter section: the first 50 m of this track has been designed to test if your bike handling skill is at the level needed for tracks rated ‘more difficult’. If you find you are not yet competent at all the challenges in this section, then do not proceed any further along the track. It is permitted to go back up the track to the start from this section only. Do not cut through the bush to exit the track.

Local Trail Association
Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 0 rides
  •  
6 Months
  • 63 rides
  • 10 miles avg distance
All
  • 541 rides
  • Last: Sep 5, 2026
c1c2c3c4
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Status:
on Sep 6, 2026
Ideal
Avg: 3.5 (30 votes)
Your vote: 0

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Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Snow Cover Partial
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Ideal
  • Dry
  • Very Dry
Trail Flow (Ridden Direction)
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The colour categories are based on what percentage of users are riding a trail in its intended direction.
  • > 96%
  • > 90%
  • > 80%
  • > 70%
  • > 50%
  • < 50%
  • bi-directional trail
  • no data
Trail Last Used
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  • < 2 days
  • < 1 week
  • < 2 weeks
  • < 1 month
  • < 6 months
  • > 6 months
Trail Ridden Direction
The intended direction a trail should be ridden.
  • Downhill Only
  • Downhill Primary
  • Both Directions
  • Uphill Primary
  • Uphill Only
  • One Direction
Contribute Details
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  • Description
  • Photos
  • Description & Photos
  • Videos
Trail Popularity ?
Trailforks scans activity logs to determine which trails are ridden the most in the last 9 months. Trails are compared with nearby trails in the same city region with a possible 25 colour shades. Think of this as a heatmap, more activities = more kinetic energy = warmer colors.
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ATV/ORV/OHV Filter
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Heatmap of where users jump on trails. Zoom in to see individual jumps, click circles to view jump details.
BC Backroad Status

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Slope Aspect
Direction the slope faces
Flat N NE E SE S SW W NW
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        Directions to gahnia trailhead (-33.765880, 151.228040)
        View on Discover Map

        Photos

        34 more »
        mtb
        49 |
        Jan 23, 2026 @ 6:09pm
        Jan 23, 2026
        mtb
        52 |
        Jan 23, 2026 @ 6:09pm
        Jan 23, 2026
        mtb
        116 |
        Mar 9, 2024 @ 5:16pm
        Mar 9, 2024
        mtb
        108 |
        Mar 9, 2024 @ 5:09pm
        Mar 9, 2024

        Videos

        2 more »
        Gahnia Mountain Bike Track
        mtb
        2:15 | 2601 | Nov 8, 2020 , Sydney
        Gahnia
        mtb
        11:01 | 1309 | May 17, 2020 , Sydney

        Routes with this trail

        216
        Manly Dam Possum loop
        ★ 3.7 • 7 miles • 430 ft • 14 • Loop •
        The common Manly Dam loop, But now with Possums and ! (possums downhill) Common loop ridden by many.
        151
        Bantry Bay & Possums Loop
        9 miles • 896 ft • 18 • Loop •
        Nice loop combining flowy descents, technical climbs, and fun cornering. Start from the Frenchs Forest...
        146
        Schnit Ghania & Jumping Fat Jacks
        5 miles • 525 ft • 22 • Loop •
        Nice warm up going down then on to some more technical trail with Ghania, all the way up to Olive Oil,...
        3.4 ★★★★★
        29 Ratings
        5 ★ 34%
        4 ★ 24%
        3 ★ 7%
        2 ★ 17%
        1 ★ 17%

        25 Reviews & Comments


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        Frequently Asked Questions About Gahnia

        ▼ Where is Gahnia located?
        Gahnia is located in Manly Dam, Sydney, Australia. It is part of the Manly Dam trail network. The trailhead is located at coordinates -33.76588, 151.22804.
        ▼ How hard is Gahnia?
        Gahnia is rated as Black Diamond difficulty. The physical rating is Hard. The average grade is 0.2%. The climb difficulty is rated Blue.
        ▼ What is the elevation gain for Gahnia?
        Gahnia has 195 ft of elevation gain. The trail has 178 ft of elevation descent. The elevation ranges from 268 ft to 377 ft.
        ▼ Is Gahnia a point to point trail?
        Yes, Gahnia is a point to point trail. The direction is One Direction. The trail type is singletrack.
        ▼ How long is Gahnia?
        Gahnia is 1.3 miles long. The trail type is singletrack.
        ▼ Are dogs allowed on Gahnia?
        Yes, dogs are allowed on Gahnia. Please keep dogs on a leash where required and clean up after them.
        ▼ How do I access Gahnia? Where is the closest parking trailhead?
        The closest parking and trailhead locations to Gahnia are: View all parking locations in the area.
        ▼ How long does it take to ride Gahnia?
        Based on recorded activities, it takes an average of 20 minutes to ride Gahnia. The trail is 1.3 miles long. Actual times will vary based on fitness level, conditions, and pace. View recent activity logs for more details.
        ▼ How busy is Gahnia?
        Gahnia is a very popular trail. There have been 4,615 recorded activities on this trail. The trail has received 4,600 check-ins. View recent activity on this trail.

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