It includes the provinces of Gilan, Mazandaran, and Golestan of Iran (Ancient kingdom of Hyrcania, medieval region of Tabaristan). The major provinces, Gilan and Mazandaran, are covered with dense forests, snow-covered mountains and impressive sea shores.
Northern Iran was a trendy spot during the Pahlevi era, especially amongst foreign tourists. It was a luxurious place that provided all types of modern recreational facilities as well as tourism infrastructure. Today, it's mostly visited by domestic tourists.