• Distance: 510 miles (820 kilometres)
• Duration: 40 to 50 days, or shorter segments
• Start Point: Irun
• End Point: Cap de Creus
• Difficulty: Strenuous

The GR11, also known as the Trans-Pyrenean, is a long-distance trail spanning over 820 kilometres across the Spanish Pyrenees, from the Atlantic to the Mediterranean.

It offers a diverse range of landscapes, from the rolling meadows of Navarre to the high peaks of the Central Pyrenees and the rugged terrain of Catalonia.

The GR11 is generally higher and tougher than the GR10 which snakes along the French side.

The best hiking season is from June to September, although snow can persist on higher passes outside these months. Section hiking is common, especially through scenic areas such as the Aigüestortes and Ordesa & Monte Perdido National Parks.