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GR-99Long Distance Trail (GR)·Linear
GR-99. Etapa 16. Oyón-Mendavia
Oyón, Biscay
Moderate33/100Year-round
Distance
31.3 km
Est. duration
7h 49min
Elevation gain
+0 m
Elevation loss
-77 m
Highest point
431.6 m
Lowest point
330.5 m
Average elevation
363 m
Elevation profile
Flat (≤1%)Gentle (1–5%)Steep (5–10%)Extreme (≥10%)
Flat (≤1%)
Gentle (1–5%)
Steep (5–10%)
Extreme (≥10%)
7-Day Forecast
Slope distribution
Flat (≤1%)74%Gentle (1–5%)24%Steep (5–10%)2%Extreme (≥10%)0%
Child-friendlyNo
Pet-friendlyNo
- 👟Light hiking shoesFootwearRecommended
- 💧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 | Oyón |
| Region | Biscay |
| Source | Federación Española de Deportes de Montaña y Escalada (FEDME) |
| Start | 42.50485, -2.43822Open in maps |
| End | 42.44251, -2.20059 |
| Track points | 442 |