Yesnaby Castle Sea Stack is a stunning natural wonder located in Yesnaby, Orkney. This 115ft sea stack stands tall amidst the crashing waves and rugged cliffs, offering a wild and remote experience for visitors. The walk to reach the sea stack is about 30 minutes along the coastal path, where you can enjoy breathtaking views and the raw beauty of nature. Don't forget your walking boots, as the paths can get muddy, but the effort is definitely worth it for this impressive sight.