The causeway linking Cayo Coco to the mainland is 27 kilometres ( 17 miles ) long .
The causeway linking Cayo Coco to the mainland runs across Perros Bay ( Bahia de Perros ) .
The causeway linking Cayo Coco to the mainland is 27 kilometres ( 17 miles ) long and runs across Perros Bay ( Bahia de Perros ) .