A British woman who has spent the last six years travelling across Europe has gone missing while hiking in the Pyrenees.Esther Dingley, who had been travelling with her partner Dan Colegate since 2014, was due to return from a solo trek from the mountain range on Wednesday.The 37-year-old set out to hike from the Porte de la Glere to the Port de Venasque, a trek which follows the border between France and Spain, according to local police.The couple had been documenting their journey online, with