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GR-321Long Distance Trail (GR)·Linear
GR-321. Etapa 01. Burgui-Isaba
Burgui, Navarre
Moderate42.2/100Year-round
Distance
22.3 km
Est. duration
6h 21min
Elevation gain
+461 m
Elevation loss
-370 m
Highest point
958.4 m
Lowest point
606 m
Average elevation
714 m
Elevation profile
Flat (≤1%)Gentle (1–5%)Steep (5–10%)Extreme (≥10%)
Flat (≤1%)
Gentle (1–5%)
Steep (5–10%)
Extreme (≥10%)
Critical Segments
Demanding Climb
CAT 4
km 5.0 · 0.5 km Distance
21% Avg
632m – 740mSlope42% Max
RiskHIGH
Demanding Climb
CAT 4
km 16.6 · 0.7 km Distance
15% Avg
728m – 830mSlope34% Max
RiskHIGH
Dangerous Descent
km 20.6 · 0.7 km Distance
17% Avg
777m – 897mSlope29% Max
RiskHIGH
Dangerous Descent
km 5.5 · 0.6 km Distance
12% Avg
664m – 740mSlope20% Max
RiskMEDIUM
Dangerous Descent
km 19.6 · 0.6 km Distance
12% Avg
881m – 955mSlope20% Max
RiskMEDIUM
Demanding Climb
km 18.4 · 0.6 km Distance
8% Avg
902m – 949mSlope14% Max
RiskMEDIUM
Dangerous Descent
km 8.8 · 0.3 km Distance
10% Avg
665m – 696mSlope11% Max
RiskLOW
Demanding Climb
km 0.5 · 0.6 km Distance
6% Avg
611m – 648mSlope7% Max
RiskLOW
7-Day Forecast
Slope distribution
Flat (≤1%)14%Gentle (1–5%)43%Steep (5–10%)23%Extreme (≥10%)20%
Child-friendlyNo
Pet-friendlyNo
- 👟Trail running shoesFootwearRecommended
- 🪄Trekking poles recommendedTrekking polesRecommended
- 💧Carry 5–6 L (no water sources on route)WaterEssential
- 🧴Sunscreen recommendedSun protectionRecommended
- 🩹Basic first aid kit + whistle + thermal blanketFirst aid kitEssential
- 🗺️GPS or offline route downloadNavigationEssential
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About this trail
Senderos de Gran Recorrido (GR)
| Start municipality | Burgui |
| Region | Navarre |
| Source | Federación Española de Deportes de Montaña y Escalada (FEDME) |
| Start | 42.71835, -1.00445Open in maps |
| End | 42.86242, -0.92286 |
| Track points | 1,068 |