With 24 hours of light during Icelandic summer, the opportunities to explore are endless. Icelandic summer is characterized by festivals around the island peaking the first weekend of August with the grandest festivals. Through the decades, the Icelanders who attend this festival, have developed "the Icelandic festival uniform", a certain attire that is a combination of outdoor clothing, wool sweaters and fisherman workwear. It is Icelandic summer after all, and you must stay warm and dry.