Prepare
Hiking the GR20 with a dog
Can you take your dog on the GR20? Yes on paper, but with real constraints. The route crosses a regional nature park: the dog is allowed on the trail on a lead, but banned from the refuges, and the Park strongly discourages it. Here are the official rules, the sections to avoid and the kit — so you decide with eyes open, not on a whim.
The status
Allowed on the trail, banned from refuges
This is the key point that many pages treat vaguely: the GR20 crosses a regional nature park, not a national park. As a result, dogs are allowed there, kept on a lead, on the trail — unlike national parks, where they're generally banned.
But the nuance that changes everything is practical: dogs are banned from the refuges and from the Park's rented tents. In other words, you have to sleep in your own tent every night, on the bivouac areas. And wild camping itself remains forbidden everywhere in Corsica, dog or no dog.
Worth knowing: the Parc naturel régional de Corse doesn't merely allow it, it strongly discourages bringing a dog on the GR20, because of the many technical passages (chains, cables, ladders, slabs). That's honest, and worth taking seriously.
On the ground
Lead, livestock and patous
The dog must stay on a lead, especially near the herds — everywhere on the GR20 — and the patous, those livestock-guardian dogs that don't take their flock lightly. A badly handled encounter can escalate fast.
Add the Corsican heat and a very abrasive terrain (rock, scree) that punishes paw pads. The GR20 with a dog is only conceivable with a genuinely athletic, hardened mountain dog, never with a sofa companion brought along "to see how it goes".
The hard sections
Where you'll have to carry your dog
Some technical sections in the north (ladders, chains, cables, slabs) are simply impassable for a dog without help: you then have to be able to lift and carry it, which means a suitable harness and a dog that lets itself be handled off the ground. The south, more rolling, is far more doable. Best to skip the most exposed variants.
The kit
The hiking-dog kit
Harness with handle
A harness with a back handle to help — or hoist — the dog on the technical passages. The centrepiece.
Saddlebags
The dog carries its own bowl and rations. Get it used to them well before you go, and never overloaded.
Water & folding bowl
It drinks as much as you, sometimes more. Filter its water too (grazing areas). See our water page.
Paws & first aid
Balm or booties for the pads, plus a small canine first-aid kit. The terrain wears paws down fast.
Our take
Honestly?
The GR20 with a dog is possible, but reserved for a seasoned pair: a trained mountain dog, conditioned pads, an experienced owner and the tent on your back every evening. Outside that, you spare your dog — and yourself — an ordeal that can turn out badly. When in doubt, the Park decides for you: it discourages it.
Sources
Check before you go
The official rule comes from the Parc naturel régional de Corse (pnr.corsica), which may change its conditions from one season to the next. Check the Park's official page before booking your bivouacs, and confirm with the wardens on arrival.