It has approximately 12,500 inhabitants and is located at the south bank of Lake Thun. The medieval castle in town dates from the 15th and 16th Centuries. Visitors can visit the grand halls within the castle, including the Baroque Banquet Hall built in 1614.
The Hotel Belvédère in Spiez accommodated the German national football team during the 1954 World Cup (soccer) held in Switzerland. "The spirit of Spiez", developed there among the players, is regarded as important factor that helped the German team to win the world championship.