WITH its harbour, picturesque beaches and rugged countryside, the island of Guernsey could be any ordinary holiday destination at first glance. But scratch below the surface and you’ll uncover the fascinating story of its five-year occupation by the Nazis — and about an an unlikely survivor of the invasion, Timmy the Tortoise. I was keen to learn about it during my adventure on the second largest of the Channel Islands. So I booked several short guided day trips with Tours Of Guernsey. Guide Amanda Johns and I ticked off all the key sites, from museums to former bunkers and even...