There are plenty of breathtaking caves throughout the world, but those in colder climates have an especially magical quality to them. Head to the gorgeous Apostle Island National Park for winter beauty like you may have never encountered before. The ice caves are stunning in February; the lake surface is frozen over, and the lakeshore cliffs form a crimson red border to this stunning arctic landscape. Inside the cave, you'll find pillars of ice that seem to defy gravity.