Lake Geneva to swim at some beaches of the lake; indeed, visibility under water was near zero. By the 1980s, intense environmental pollution (eutrophication) had almost wiped out all the fish. Today, pollution levels have been dramatically cut back, and it is again considered safe to swim in the lake. Major leisure activities practiced include sailing, wind surfing, boating (including water skiing and wakeboarding), rowing, scuba diving and bathing. On a scientific footnote, in 1827, Lake Geneva was the site for the first measurement of the speed of sound in (fresh) water. French mathematician Jacques Charles François Sturm and Swiss Physicist Daniel
Geneva World Alliance of Young Men's Christian Association The city's main newspaper is the daily "Tribune de Genève", with a readership of about 187,000. "Le Courrier" mainly focuses on Geneva. Both "Le Temps" (headquartered in Geneva) and "Le Matin" are widely read in Geneva, but cover the whole of Romandy. Geneva is the main media center for French-speaking Switzerland. It is the headquarters for the numerous French language radio and television networks of the Swiss Broadcasting Corporation, known collectively as Radio Télévision Suisse. While both networks cover the whole of Romandy, special programs related to Geneva are sometimes broadcast on some