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2,644 ft
Distance
7 ft
Climb
-305 ft
Descent
00:07:15
Avg time
-299 ft
Altitude change
681 ft
Altitude min
980 ft
Altitude max
980 ft
Altitude start
682 ft
Altitude end
-11.3%
Grade
-23.7%
Grade max
10.9%
Grade min
92 ft
Distance climb
2,287 ft
Distance down
269 ft
Distance flat
00:07:15
Avg time
Sempiternal Details
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Activities
- Mountain Bike
- E-Bike
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Riding AreaWestwood
Nanaimo, British Columbia -
Difficulty Rating
-
Voted DifficultyBlue (4 votes)
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Local Popularity100 in Mountain Biking [+]
- 100 in E-Biking
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Global Ranking
-
Provincial Ranking
-
Trail TypeSingletrack
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Bike TypeDH, AM, XC
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DirectionDownhill OnlyPopular Direction Shown
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Physical RatingModerate
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Trail VisibilityAlways easy to follow
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Dogs AllowedYes
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eBike AllowedYes up to Class 1
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TTFs on TrailBerm, Jump, Gap Jump
Very high-speed downhill mountain bike trail, one of the most popular flow trails in Nanaimo. Super fun berms, jumps and two drops with roll downs. Great trail for leaning skills and progression.
For everyone's safety, please do not hike on this trail and keep dogs on-leash unless riding down it.
Sempiternal \sem-pih-TER-nul\ adjective. : of never-ending duration : eternal.
Trail Supporters
Nanaimo Mountain Bike ClubSponsor
Local Trail Association
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-
Please consider joining or donating to the local trail association to supportDonate to earn trail karma!
trail development & maintenance.
Traditionally Indigenous Territory
Recent Activity on Trail
Past Week
- 16 rides
- 5 miles average
6 Months
- 391 rides
- 8 miles avg distance
All
- 2,926 rides
- Last: Oct 20, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Sempiternal 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
Trail Flow (Ridden Direction)
Trailforks scans users activity logs to determine the most popular direction each trail is ridden. A good flowing trail network will have most trails flowing in a single direction according to their intension.
The colour categories are based on what percentage of users are riding a trail in its intended direction.
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
Trailforks scans activity logs to determine the last time a trail was ridden.
- < 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
Colors indicate trail is missing specified detail.
- 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.
- most popular
- popular
- less popular
- not popular
ATV/ORV/OHV Filter
Max Vehicle Width
inches
US Cell Coverage
Legend
Radar Time
Activity Recordings
Trailforks uses anonymized public activity data.
?
Activity Recordings
Trailforks uses anonymized public activity data.
?
Winter Trails
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A routing network for winter maps does not exist. Selecting trails using the winter trails layer has been disabled.
Missing Trails
Most Popular
Least Popular
Trails are colored based on popularity. The more popular a trail is, the more red. Less popular trails trend towards green.
Jump Magnitude Heatmap
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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Service Road Atlas is a free to use, community-driven service for viewing and creating reports on the numerous back-country service roads around B.C. and Alberta.
Slope Aspect
Direction the slope faces
Trails Deemphasized
Trails are shown in grey.
Only show trails with no bike usage.
Suggested Layers
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Directions to sempiternal trailhead
(49.157900, -124.013930)
Photos
27 more »
Videos
9 more »
Technical Trail Features (TTF)
- Ol' Huck n' Buck City #8
Ladder Bridge - Tombstone Trestle Bridge Ladder Bridge
Routes with this trail
★ 4.5 • 5 miles • 969 ft • 8 • Loop •
Nice little quick loop around Westwood Lake - easy climbs for beginners or hardtails.
★ 5.0 • 22 miles • 3,391 ft • 16 •
Four distinct zones, very pedalable with a few very hard climbs. Some ripper downs. Well built, modern...
3 miles • 582 ft • 7 •
Legalize It Arbot rd entrance to Lower Binx to 5 Brothers on to Kilpatrick for a bit then up CTS to the...
6 Reviews & Comments
augmented2nd
More walkers looking lost AF on this trail today. For some reason they were actually slightly off the trail trying to just 4x4 there way. No idea what they were doing but I told them its a downhill mtb specific black diamond. They didnt respond. Maybe we need more signs saying no pedestrians or uphill traffic of any sort, this is a flow trail, pretty fast.
tmaddison
I keep encountering hikers coming up this trail. Maybe there could be some more visible or strongly worded signage at the bottom? The last thing I want is for anyone to get hurt because of a collision 
puI1My
Such a fun trail. Well built, fast and flowy with some jumps and features that can be easily ridden around.
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