The Portuguese coast is extensive; in addition to approximately along the coast of continental Portugal, the archipelagos of the Azores (667 km) and Madeira (250 km) are primarily surrounded by rough cliff coastlines. Most of these landscapes alternate between rough cliffs and fine sand beaches; the region of the Algarve is recognized for its sandy beaches popular with tourists, while at the same time its steep coastlines around Cape St. Vincent is well known for steep and forbidding cliffs. An interesting feature of the Portuguese coast is Ria Formosa with some sandy islands and a mild and pleasant climate characterized by warm but not very hot summers and generally mild winters.