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3,707 ft
Distance
25 ft
Climb
-301 ft
Descent
00:12:55
Avg time
-276 ft
Altitude change
115 ft
Altitude min
407 ft
Altitude max
390 ft
Altitude start
115 ft
Altitude end
-7.4%
Grade
-32.5%
Grade max
8.6%
Grade min
643 ft
Distance climb
2,963 ft
Distance down
105 ft
Distance flat
00:12:55
Avg time
Ya Mum Details
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Activities
- Mountain Bike
- Hike
- Trail Running
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Riding AreaMt Narra
Sydney -
Difficulty Rating
-
Voted DifficultyBlack Diamond (10 votes)
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Local Popularity70 in Mountain Biking [+]
- 30 in Trail Running
- 5 in Hiking
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Global Ranking
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Trail TypeSingletrack
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Bike TypeDH, AM
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DirectionDownhill OnlyPopular Direction Shown
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Physical RatingHard
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eBike Allowed
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TTFs on TrailDrop, Gap Jump
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Land OwnerNorthern Beaches Council & Garigal National Park
Have you ridden Ya Mum?
Starting out from one of the best rock peaks in the Beaches, the trail follows a rocky ridge line, with a bunch of tricky roll downs, jumps, gnarly chutes and a drop to finish right by the lake.
This trail is unsanctioned.
Trail Supporters
GARIGAL GORILLAS MTB CLUBSponsor
Traditionally Indigenous Territory
Recent Activity on Trail
Past Week
- 0 rides
6 Months
- 24 rides
- 11.9 km avg distance
All
- 189 rides
- Last: Jun 14, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Ya Mum Trail Reports
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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
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The colour categories are based on what percentage of riders are riding a trail in its intended direction.
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- > 6 months
Trail Ridden Direction
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- Downhill Primary
- Both Directions
- Uphill Primary
- Uphill Only
- One Direction
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Directions to ya-mum trailhead
(-33.709500, 151.262530)
Photos
25 more »
Videos
5 more »
5:27 |
118 |
Oct 28, 2025 , Sydney
5:36 |
548 |
Jan 11, 2023 , Sydney
0:18 |
1621 |
Jul 23, 2019 , Sydney
0:07 |
524 |
Aug 30, 2021 , Sydney
4 Reviews & Comments
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Frequently Asked Questions About Ya Mum
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Where is Ya Mum located?
Ya Mum is located in Mt Narra, Sydney, Australia. It is part of the Mt Narra trail network. The trailhead is located at coordinates -33.7095, 151.26253.
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How hard is Ya Mum?
Ya Mum is rated as Double Black Diamond difficulty. The physical rating is Hard. The average grade is 7.4%.
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What is the elevation gain for Ya Mum?
Ya Mum has 25 ft of elevation gain. The trail has 301 ft of elevation descent. The elevation ranges from 115 ft to 407 ft.
▼
Is Ya Mum a point to point trail?
Yes, Ya Mum is a point to point trail. The direction is Downhill Only. The trail type is singletrack.
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