The Val d’Aran, in north-west Catalonia, is unique due to being the only Atlantic-facing valley in this region of Spain, an aspect which influences the climate and, by association, the flora and fauna that live there.
In winter it is colder and snowier, with a series of peaks around 3,000m elevation offering a distinctly different biosphere than the valleys elsewhere.
From a human perspective, its historical isolation preserved its fiercely independent culture and distinct medieval architecture.
The overwhelming majority of the landscape is untouched wilderness and it is one of the richest areas for alpine biodiversity in Europe. We think it has a just claim to being considered Spain's 'Lost World'! The juxtaposition of sunny mountain slopes, damp valleys and flowery tracks mean that it is home to over 150 species of butterfly.
Among this plethora of butterflies we'll be hoping to see some particularly charismatic and special species: these include Glandon Blue, Silvery Argus, Mountain Clouded Yellow, Purple and Lesser Purple Emperor, Apollo, Black Satyr, Yellow-spotted Ringlet, Pyrenean Brassy Ringlet, Gavarnie Ringlet, and Piedmont Ringlet.
The two guides who will be introducing these butterflies during this tour will be none other than Miguel Munguira, the pre-eminent butterfly expert of Spain, and Juan Pablo Cancela, a seasoned professional in butterfly conservation biology.
This unique and exclusive tour is new for 2027 - we anticipate this will be a deservedly popular one for years to come.































