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Day 1-6: Walking 🄾GR20 ā€˜Toughest Hike in Europe’ Corsica šŸ‡«šŸ‡· 10 Days!

  • Writer: Tough Girl
    Tough Girl
  • Aug 8
  • 6 min read

Updated: Aug 28



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✨ The GR20 is often called Europe’s toughest trek — and it definitely made a bold first impression. From dramatic climbs to jaw-dropping Corsican landscapes, the first five days were a test of both endurance and mindset. In this post, I’m sharing my daily stats, trail highlights, and honest thoughtsĀ from Days 1 to 5. Let’s dive in! šŸ“ŠšŸ“āœØ



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Day 1/10 🄾GR20, Corsica šŸ‡«šŸ‡·


ā„¹ļøStats: with @masonalexandra 🄳

Weather: hot 🄵 & sunny

From: Calenzana

Start time: 6.30am

To: Bivouac de l’Ortu di u Piobbu

End time: 2.05 pm

Accommodation: camped

Terrain: dusty, rocky, scrambly, switchbacks, forest


🄾Km: 12

🄾Miles: 7.5

🦶Steps: 13,390

Ascent 1550m / 5085 ft

Descent 235 m / 770ft


Total Distance 12/190km 6% Done āœ…

Cicerone Guide Book - Stage 1A


šŸ’°Costs: €3.50 coke

€9 cheese & bacon omelette


Subjective feeling out of 10 on:


Enjoyment: 7/10

Fatigue: 4/10

Ease of terrain: 6/10


ā­ļøHighlights: scrambling was awesome, good fun, not exposed. Views were epic.


šŸ”ļøChallenges: ran out of water about 12.30pm - it was so hot and a real slog to get to the refuge.


šŸ’­Thoughts: great to drink water again. Note to self - drink water before I leave and carry 3 litres! It’s so hot out there. The refuge seems massive - so much space to camp, it’s busy but you don’t feel on top of other people. We set of at 6.30am - but tomorrow we do need to leave earlier - because of the heat.




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Day 2/10 🄾GR20, Corsica šŸ‡«šŸ‡·


ā„¹ļøStats: with @masonalexandra 🄳

Weather: hot & sunny ā˜€ļø

From: Bivouac de l’Ortu di u Piobbu

Start time: 5.20am

To: Asco / Ascu Stagnu

End time: 8.15pm

Accommodation: camped

Terrain: mountains, rocky, scree, forest, flat slabs, chain links.


🄾Km: 8 + 5 ā€Žā€‰= 13

🄾Miles: 5 + 3 ā€Žā€‰= 8

🦶Steps:

Ascent 750m (2460ft) + 860m (2820ft)

descent 1050m (3445ft) + 710m (2330ft)


Total Distance 25/190km 13% Done āœ…

Cicerone Guidebook 2A & 3


šŸ’°Costs: €2.50 coke

€3.50 magnum almond ice cream

€2 2x strawberry šŸ“ yogurt

€9 camping šŸ•ļø


Subjective feeling out of 10 on:


Enjoyment: 7/10

Fatigue: 6/10

Ease of terrain: 10/10 - one of the longest and hardest days. I have ever done on a trail.


ā­ļøHighlights: stunning views, bumped into a tough girl Shadi who’s shared her story on the tough girl podcast previously. What a small world. Watching the trail runners go past - amazing to watch them run up and down the massive mountains.


šŸ”ļøChallenges: alarm at 4.30am - ahhh - packing up in the dark. Having a bit of a dodge stomach- not what you want! The insane amount of a descents & ascents there was a few gnarly sections as well


šŸ’­Thoughts: I honestly don’t know what to say. I’m so brain-dead and frazzled. The Sun was relentless it never cooled down until about 9 o’clock. I was so tired at the end of the day - over 13hrs on our feet. Continuous climbing. The never ending descent. So grateful to set the tent up and lie down.


šŸŽ„ Watch the Day 1–2 vlog below—or click here



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Day 3/10 🄾GR20, Corsica šŸ‡«šŸ‡·


ā„¹ļøStats: with @masonalexandra 🄳

Weather: hot and sunny ā˜€ļø

From: Asco / Ascu Stagnu

Start time: 5.45am

To: Auberge U Vallone

End time: 5.20pm

Accommodation: camped

Terrain: scrambling on steep Rocky slopes, high ridges, steep scree slopes.


🄾Km: 10

🄾Miles: 6.25

🦶Steps: 9584 - I don’t know how this can be correct…

Ascent 1250m (4100ft)

descent 1230m (4035ft)


Total Distance 35/190km 18% Done

Cicerone Guidebook Stage 4


šŸ’°Costs: €4 Coke

€5 flan

€3 orange juice

€9 camping šŸ•ļø

€9 ham and cheese omelette

€14 vegetable plate

€5 flan - desert


Subjective feeling out of 10 on:


Enjoyment: 5/10

Fatigue: 6/10

Ease of terrain: 10/10


ā­ļøHighlights: getting to the summit of Bocca Crucetta 2452m. A nice little scramble just before the top. Amazing views. Getting snow and rubbing it on my arms and legs to cool down. Had a lovely evening meal sat down with some fellow hikers. It was gorgeous out on the outside terrace with stunning views looking down the valley.


šŸ”ļøChallenges: I was so slow to get going in the morning. It was such a struggle climbing this mountain. So many technical sections. Luckily, we were in the shade for parts of it which made a big difference. The descent was done through the hottest part of the day. It was relentless there was no shade at all. Brutal.


šŸ’­Thoughts: my stomach hasn’t been great over the past couple of days which is made eating food really difficult. I’ve been getting by with Kendall mint cake and a flapjack once per day which is obviously not enough food to sustain you. Which is why I was really struggling with the walking over the past couple of days. I finally started to feel better this evening hence why I spent so much money on food!




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Day 4/10 🄾GR20, Corsica šŸ‡«šŸ‡·


ā„¹ļøStats: with @masonalexandra 🄳

Weather: hot & sunny with severe weather warning due to heat šŸ”„

From: Auberge U Vallone

Start time: 6am

To: Refuge to Manganu

End time: 8.50pm

Accommodation: camped - grassy & flat - but by the toilets!

Terrain: forest walks, steep, stony & rocky. Woodland walking.

🦶14 hrs 50 mins - I did take a few small breaks.


🄾Km: 14 + 16.5 ā€Žā€‰= 30.5

🄾Miles: 8.75 + 10.25 ā€Žā€‰= 19

🦶Steps: 25,071

šŸ”ļøAscent: 1520m (4990ft)

šŸ”ļøDescent 1345m (4415ft)


Total Distance 65.5/190km 34% Done āœ…

šŸ“–Cicerone Guidebook stage 5 & 6


šŸ’°Costs:

€22 melon, cheese, meat & coke

€9 ice cream & fruit salad

€10 sunscreen

€10 salad -tuna, tomato, onion & sweetcorn

€4 coke

€5 milk chocolate bar

€18 camping

Total = €78 - most expensive day so far!


Subjective feeling out of 10 on:


Enjoyment: 7/10

Fatigue: 6/10

Ease of terrain: 10/10


ā­ļøHighlights: after the hotel it was very flat and fast walking. Like being on the AT and the hike up the mountain was done by switchbacks.


My appetite it back! I’ve eaten well today!! Needed as I hadn’t been able to eat much over the first 3 days. Plus I think my stomach is getting back to normal.


šŸ”ļøChallenges: sunburn on my wrist and 2 small bits on the back of my legs. The early morning starts are not good for me. Alex prefers to set off earlier and I prefer to start a little later. So tomorrow we’ll start separately and meet up later. Which takes the pressure off me and allows me to get a longer night sleep.


šŸ’­Thoughts: such a long stage. Doing double stages is killing me. It was such a push to get to the refuge. Pleased I made it. So many great food places on the way.



šŸŽ„ Watch the Day 3–4 vlog below—or click here



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Day 5/10 🄾GR20, Corsica šŸ‡«šŸ‡·


ā„¹ļøStats: Weather: hot & sunny ā˜€ļø

From: Refuge Manganu

Start time: 7.30am

To: Refuge de Petra Piana

End time: 3.10 pm

Accommodation: camped ā›ŗļø

Terrain: rocky, big boulders, gravel, high mountain passes


🄾Km: 9

🄾Miles: 5.5

🦶Steps: 8977

šŸ”ļøAscent 980m (3215ft)

šŸ”ļøDecent 740m (2430ft)


Total Distance 74.5/190km 39% Done āœ…

šŸ“–Cicerone guidebook stage 7


šŸ’°Costs: €5 ice cream

€18 camping šŸ•ļø

€2 snickers

€22 dinner - starter - main & dessert

€2 2x crisps

€2 snickers


Subjective feeling out of 10 on:


Enjoyment: 7/10

Fatigue: 5/10

Ease of terrain: 10/10


ā­ļøHighlights: reaching the highest point on thr GR20. A hard core climb with a chain down a gully was a particularly highlight.


šŸ”ļøChallenges: everything! The weather, the rocks, the climbing, the descending. I kept turning another corner and the terrain would be the same, just a rocky path going on forever!


šŸ’­Thoughts: it was so nice having a lie in this morning. My body really needed it. I’ve got a plan to finish the trail and feel confident with it. I’ve had to change up a few of the stages. But it will work better for me.




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Day 6/10 🄾GR20, Corsica šŸ‡«šŸ‡·


ā„¹ļøStats: Weather: hot and sunny ā˜€ļø

From: Refuge de Petra Piana

Start time: 6.15am

To: Vizzavona

End time: 7.50pm

Accommodation: camped ā›ŗļø

Terrain: big ass mountains, boulders, small rocks, medium rocks, large rocks, forest tracks


🄾Km: 7 + 11 ā€Žā€‰= 18

🄾Miles: 4.5 + 6.75 ā€Žā€‰= 11.25

🦶Steps: 15,190

Ascent 390m (1280ft) + 670m (2200ft)

descent 800 m (2625ft) + 1180m (3870ft)


Cicerone guidebook stages 8B (high level) + 9A (low level)


šŸ’°Costs: €24 meat and fries

€4 coke

3x pineapple juice €7.50

Chocolate €2.50

€5.50 gluten green bread

3 baby bell €2.10

Pack of ham €3

Crisps €4

Camping €9

Jelly sweets €3


Subjective feeling out of 10 on:


Enjoyment: 7/10

Fatigue: 6/10

Ease of terrain: 10/10


ā­ļøHighlights: reaching the top of the mountains. Streak & fries for lunch. Making it to the campsite - they had a well stocked food options. Catching up with Alex. Buying and eating all the food. It was soooo good šŸ˜€


šŸ”ļøChallenges: 1st section 6.15 - 11am

Next section started at 12.20 pm made it to the summit at 2.40pm 2hrs 20 mins šŸ„³šŸ’Ŗ


šŸ’­Thoughts: 4 more days - double stage, single stage, double stage, double stage. Done āœ… I can do this šŸ’Ŗ



šŸŽ„ Watch the Day 5–6 vlog below—or click here



šŸ‘‰ Curious how the journey continues?Ā Check out Part 2: GR20 Days 7–10Ā for more stats, stories, and mountain moments! ā›°ļøšŸ“ŠāœØ



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