GR 20 accommodation · Checked October 2026

Where to stay from Petra Piana to Onda

1 place · 1 with rooms, 1 camping, 1 with meals on the Petra Piana → Onda section of the GR 20, in L'Onda. Phone and WhatsApp numbers are listed so you can book ahead.

L'Onda

Refuge de l'Onda

  • Rooms
  • Camping
  • Meals
  • Shop
  • Seasonal — call ahead

Small PNR refuge with only 16 indoor beds and a large flat bivouac area plus tent rental; staffed 16 May to 4 October 2026, booking mandatory; phones are the PNR reservation centre.

Checked online in October 2026. Places marked "listed by the park or tourist office" are on an official list but could not be confirmed on their own website. Park refuges on the GR 20 are booked online through the PNR; private gîtes and bergeries take bookings directly.

Walk Petra Piana to Onda with Outest

The GR 20 route works offline in Outest, with these places on the map and a trail guide you can ask about water, weather and the next village.