Boucle des Trois Vallées

EASY (1.5/10)

Circular route from Bois Grapatte

Distance

9.3 km

Ascent

+319 m

Descent

-319 m

Est. Time

3h 06m

Altitude

399.1–519.8 m

Type

circular

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Boucle des Trois Vallées is a 9.3 km circular easy hiking route in Switzerland, starting and finishing at Bois Grapatte. The route covers 319m of ascent and 319m of descent, with elevations ranging from 399m to 519m. Allow approximately 3h 06m for the full route.

With 94% of the route below 15% gradient, strong trail runners can maintain a good rhythm for much of the distance.

Budget roughly 1,445 kcal of energy expenditure and 1.9 L of water.

Low-altitude route (max 520m). Hikeable most of the year.

Elevation Profile

Steep (15–25%) Easy (5–10%) Flat (<5%) Very Steep (>25%) Moderate (10–15%)

Route Map

🗺️ Open in Planner → | 📐 OSM Route → | 🅿️ Route from Parking → | 🏔️ View 3D Flyover → | 📡 Trails API →

Segment Breakdown

Auto-analyzed from the elevation profile. Each segment shows the dominant character for planning your effort.

Segment	Dist	↑ / ↓	Time	Character
Bois Grapatte → km 5.4 (498m) 400–520m	5.4 km	+207m / -167m	1h 30m	🏃 Highly Runnable
km 5.4 (498m) → Bois Grapatte 423–498m	3.9 km	+102m / -142m	1h 01m	🏃 Highly Runnable
Total	9.3 km	+319m / -319m	2h 31m

Pace & Fuel Calculator

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Fast Hiker / Jogger

Est. Finish Time

1h 36m

Calories

1,167 kcal

Water Needed

1.5 L

Effort Distance

14.1 km

flat-equivalent

🍫 Recommended: ~45g carbs/hr (73g total) 🧂 Electrolytes: ~806mg sodium/hr

Terrain Analysis

Runnability

94%

Very Runnable

% of route below 15% gradient

Climb Ratio

34 m/km

Moderate profile

↑ 319m ↓ 319m

High Point

519.8 m

Mountain zone

Low point: 399.1m — Range: 120.7m

Surface & Technicality

Terrain Difficulty Breakdown

Runnable Flat (36%) Easy Grade (47%) Moderate Climb (12%) Steep (3%) Very Steep / Technical (2%)

🏃 Mostly runnable with gentle terrain. Great for fast trail running.

Sun Exposure

🌲 Well Shaded 20% exposed · 80% shaded

Route shade profile

Forest/shaded (80%) Open terrain (20%)

South-facing: 31% of route

🌲 Mostly shaded route. Good tree cover at lower elevations. Less sun exposure risk, but still carry sun protection for any exposed ridge sections.