Biel (also known as Bienne) is a bilingual city in northwestern Switzerland, where both German and French are spoken. Located at the foot of the Jura Mountains and along Lake Biel, it’s known as the heart of the Swiss watchmaking industry, home to brands like Rolex, Omega, and Swatch. The city features a charming old town, beautiful lakeside promenades, and easy access to outdoor activities in the nearby vineyards and hills. Biel blends innovation, craftsmanship, and a relaxed multicultural atmosphere.