Just 6km east of Demnate along the R307 is Iminifri (‘Grotto’s Mouth’ in Berber), a natural travertine bridge that formed over a gorge 1.8 million years ago. The two sides of the bridge are said to represent two local lovers whose families kept them apart, so this Romeo and Juliet held hands and turned to stone. You can walk down into the gorge and through this toothy maw by yourself – the paths are clearly marked by the bridge and post office and comprise 300 steps down – but you might want to pay a small tip ($,$) to a local guide to help you over some tricky boulders and explain local lore.