The Black Forest covers a triangular section roughly 145km (90 miles) long and 40km (25 miles) wide in southwestern Germany. The pine- and birch-studded mountains here are alive with fairy-tale villages, spas, and ski resorts. The peaks in the southern part of the forest reach as high as 1,525m (5,000 ft.) and are excellent for skiing in winter and hiking or mountain climbing in summer. The little lakes of Titisee and Schluchsee are popular for boating, swimming, and ice skating. Fish abound in the streams and lakes.