The Bernese Oberland is one of the greatest tourist attractions in the world, mainly because it's one of the best areas for winter sports. The region sprawls between the Reuss River and Lake Geneva, with the Rhône forming its southern border. The area contains two lakes, the Thun and the Brienz, and takes in a portion of the Alps (culminating in the Finsteraarhorn at 4,207m/13,799 ft.). The canton of Bern, which encompasses most of the area, is the second largest in Switzerland and contains about 160 sq. km (62 sq. miles) of glaciers.
The best center for exploring the Bernese Oberland is Interlaken, most popular as a summer resort. Other cities in the region, such as Gstaad, Grindelwald, Kandersteg, and Mürren, are both summer and winter playgrounds. You can ski the mountains during winter and swim, sail, and water-ski on Lake Thun in the summer.