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-on-the-Lake, Ohio State Park continued to grow through 1974 to include cabins, campgrounds, and a swimming beach. Geneva-on-the-Lake's central attraction is "the Strip", a section of State Route 531 which is lined with parks, restaurants, and arcades, and has been a tourist attraction for decades. Eddie's Grill, an icon of "the Strip" has been catering to visitors since 1950 when it started as a Richardson Root Beer and hotdog stand. Through the years, it has grown into a patio, Dairy Queen, pizza parlor, and arcade serving patrons in a classic 1950s-style environment. In 2004, the Lodge and Conference Center at Geneva State