K20 Demónios 2026
Loop from Alvarinhos · Lisbon, Portugal
Community route · Running · Saved 10 Aug 2026
22.0 km · +713 m · 3h 34m · loop · Running
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K20 Demónios 2026 is a 22.0 km run loop from Areias near Alvarinhos, with 713m of climbing and an effort score of 29.
Community race course import for Trail Demónios do Lizandro
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Route briefing
What comes next
Climbs and descents in route order. Not listed does not mean absent: it may not be mapped.
Start
0 m
Areias
Start
Route geometry · source 2026-08-10
About 0 min in
22.0 km remaining
+713 m remaining
Descent
560 m
154 m descent
1.4 km at 11.3% average
Saved route geometry · source 2026-08-10
About 5 min in
21.4 km remaining
+699 m remaining
Climb
3.3 km
133 m climb
1.5 km at 9.1% average
Saved route geometry · source 2026-08-10
About 32 min in
18.7 km remaining
+687 m remaining
Climb
6.8 km
139 m climb
1.2 km at 11.8% average
Saved route geometry · source 2026-08-10
About 1h 06m in
15.2 km remaining
+562 m remaining
Climb
9.5 km
106 m climb
0.7 km at 14.3% average
Saved route geometry · source 2026-08-10
About 1h 32m in
12.5 km remaining
+427 m remaining
Climb
15.2 km
110 m climb
1.0 km at 11.0% average
Saved route geometry · source 2026-08-10
About 2h 28m in
6.8 km remaining
+220 m remaining
Finish
22.0 km
Route finish
Finish
Route geometry · source 2026-08-10
About 3h 34m in
0 m remaining
Other community routes nearby
Saved by people on TrailSplits for a similar outing, not reviewed guides. Starts are measured in a straight line.
- K30 Demónios 2026
Alvarinhos · Lisbon, Portugal · 31.3 km · +994 m · loop · Same start
- K12 Demónios 2026
Alvarinhos · Lisbon, Portugal · 11.6 km · +252 m · loop · Same start
- K50 Demónios 2026
Alvarinhos · Lisbon, Portugal · 51.1 km · +1,543 m · loop · Same start
Turn this into a multi-day trip
Balance the route into daily stages, move overnight points, then share one plan with GPX, offline maps, and navigation for every day.
Terrain & grades
88% at ≤15% gradeThis loop packs 32m of climb per kilometre, which makes it a relatively flowing profile. 88% of the measured line is at 15% grade or less (slope only, not surface or technicality). The hardest kilometre is around km 8, gaining about 130m. Total route distance is 22.0 km.
Snow & conditions
Snow not assessedCurrent snow evidence is not available for this route. Missing data does not establish snow-free conditions.
Route sections
Hard effort, estimated around 3h 34m moving time using a trail run model: 7:00 min/km flat pace plus about 52 min for 713m of climbing. Expect 2% steep-grade exposure.
Fuel & gear
Plan roughly 17 small fuel units, then adjust for weather, aid, and personal effort.
Surface
OpenStreetMap tags the surface on 23% of this route; the rest is classed by its road type, an estimate.
Path difficulty, as tagged in OpenStreetMap
- T1 hiking: 246 m
- T2 mountain hiking: 205 m
- T3 demanding mountain hiking: 384 m
Hardest tagged grade: T3 demanding mountain hiking, first from km 9.8 for 383 m.
No difficulty tag on 15.6 km of path or track: unknown, not easy.
The SAC hiking scale mappers give each path. It is not a check of exposure, the weather or snow on the day.
On the ground, from the map
- Ford (no bridge) at km 6.5, 35 m
- Ford (no bridge) at km 6.9
- Ford (no bridge) at km 7.1
3% on waymarked trails.
Only 95% of the line runs on mapped paths; the map says nothing about the rest.
What the map does not say (2)
- 1.2 km of the line follows no mapped path: no surface, way or grade there.
- 15.8 km has no mapped surface; it is the default for its kind of way.
From OpenStreetMap, matched to this line by the route analysis any app can call. Conditions on the day are not in it.
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