The Krísuvíkurberg Cliffs in Iceland are a top spot for bird-watching, especially in summer when 60,000 birds nest there. The cliffs drop straight into the ocean, making for a dramatic sight. In winter, it's not your typical tourist destination, with icy roads and migratory birds gone. But if you're up for an adventure and have a good four-wheel-drive, it's worth checking out for the stunning views and crashing waves. Just be prepared for some challenging conditions!