days can turn cold and windy, especially at higher elevations) and keep your mobile phone charged. Carry a paper map as a backup. Before heading into wilderness areas, upload your itinerary to Safe travel.is.
Sneaker waves: Iceland’s south coast has some dangerous beaches with strong waves that regularly pull unsuspecting tourists out to sea. Those breathtaking blacksand beaches can become dangerous suddenly. Obey all signs, and stay much farther away from the water than you think is necessary.