Spain is probably the most diverse country in Europe: for the adventurous and those who love the mountains, the National Parks Picos de Europa and Ordesa as well as the Pyrenees are good areas for skiing, climbing and other sports. The lay of the land in Spain means it has fantastic beaches that differ depending on the adjoining seas; the Atlantic Ocean is tough and cold, while the Mediterranean Sea is calm and warm. In addition, cities like Madrid and Barcelona are two of the largest and most visited destinations on the Continent.