Complex sentence: Situated on the rough western coast of Norway they are equipped with one of the best testing areas for boats, the north sea, this is probably also why they have had the slogan "renowed or safety at sea" throughout their over fourty years of existence.
Split into simpler sentences: Situated on the rough western coast of Norway they are equipped with one of the best testing areas for boats, the north sea. This is probably also why they have had the slogan "renowed or safety at sea" throughout their over fourty years of existence.