Despite the use of filtering gourdes, several hikers have been intoxicated in recent weeks in the heights of the Hautes-Pyrénées. But then, are they really safe to use, and in what cases...
Despite the use of filtering gourdes, several hikers have been intoxicated in recent weeks in the heights of the Hautes-Pyrénées. But then, are they really safe to use, and in what cases...