Gloriously remote, St. Kilda is an archipelago 50 miles off the Isle of Harris. Although the four islands are uninhabited by humans, thousands of seas birds call these craggy cliffs home, clinging to the sheer faces as if by magic. Not only is St. Kilda home to the UK’s largest colony of Atlantic Puffin (almost 1 million), but also the world largest colony Gannets nests on Boreray island and its sea stacks. The islands also home decedents of the world’s original Soay sheep as well as having a breed of eponymously named mice. The extremely rare St. Kilda wren unsurprisingly hails from St. Kilda, so birders should visit with notebook, binoculars and camera to hand. While endemic animal species is rife on the island, St. Kilda has not been peopled since 1930 after the last inhabitants voted that human life was unsustainable. However, permanent habitation had been possible in the Medieval Ages, and a vast National Trust for Scotland project to restore the dwellings is currently being undertaken. The islands even enjoyed a status as being an ideal holiday destination in the 19th century. Today, the only humans living on the islands are passionate history, science and conservation scholars. One of the caretakers even acts as shopkeeper and postmaster for any visitors who might like to send a postcard home from St. Kilda. It should be noted that St. Kilda is the UKs only (and just one of 39 in the world) dual World Heritage status from UNESCO in recognition of its Natural Heritage and cultural significance.