1 miles
Distance
37 ft
Climb
-221 ft
Descent
00:08:32
Avg time

Tunnel 4 Details

  • Riding area
    Los Penasquitos Canyon
    San Diego, California
  • Difficulty rating
  • Trail type
    Singletrack
  • Bike type
    AM
  • Trail Usage
    Multi-use
  • Direction
    Both Directions
  • Climb Difficulty
    Blue
  • Physical rating
    Moderate
  • Global Ranking

One of the few surviving tunnel trails. It gets its name from the way it swoops through dense scrub oak.

Local Trail Association
More Stats for Tunnel 4 mountain bike trail
  • Altitude change
    -184 ft
  • Altitude min
    240 ft
  • Altitude max
    438 ft
  • Altitude start
    438 ft
  • Altitude end
    254 ft
  • Grade
    -3.466%
  • Grade max
    -21.128%
  • Grade min
    8.223%
  • Distance climb
    1,035 ft
  • Distance down
    3,400 ft
  • Distance flat
    861 ft
  • Avg time
    00:08:32
  • Avg reverse time
    00:12:51
  • view trail stats
Status:
on Jul 15, 2018
Dry
Avg: 4.2 (5 votes)

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Layers winter
Trail Style
  • ?
Trail Conditions
  • Unknown
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Dry
  • Very Dry
Directions to tunnel-4 trailhead (32.945459, -117.164093)
update trails status or condition

Tunnel 4 Trail Reports

datedescription
Jul 15, 2018 @ 7:09am
1 days
Jun 26, 2018 @ 4:46pm
Jun 26, 2018
May 7, 2018 @ 2:50pm
May 7, 2018
May 7, 2018 @ 2:50pm
May 7, 2018
The ranges made it so once you hit the huge dip going downhill they made it so you have to turn. It is basically a bypass for the dip. Once your...
Apr 29, 2018 @ 3:10pm
Apr 29, 2018
view all reports »

Photos

more »
73 |
Dec 20, 2016 @ 7:30pm
Dec 20, 2016
Tunnel 4, San Diego
40 |
Dec 20, 2016 @ 7:30pm
Dec 20, 2016
Tunnel 4, San Diego
43 |
Dec 20, 2016 @ 7:30pm
Dec 20, 2016
Tunnel 4, San Diego
48 |
Dec 20, 2016 @ 7:29pm
Dec 20, 2016
Tunnel 4, San Diego

Routes with this trail

titleratingdistance
Los Penasquitos and Del Mar Mesa Intro Tour
24 miles

Reviews / Comments

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Use trail reports to comment on trail conditions.


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Videos

more »
Tunnels #4 singletrack | PQ Trail, San Diego...
4:33 | 13 | Jun 29, 2018 , San Diego
A Quick Penasquitos Canyon Ride
2:23 | 56 | Apr 29, 2018 , San Diego
Trek Stache 9 #29plus Review and First Impressions
11:40 | 99 | Dec 12, 2017 , San Diego
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