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, Florida schoolhouse was preserved for the community and in 1995 it served as a family resource center. Finally in 2008, the building was dedicated to the community to serve as a rural heritage center. Geneva is located at (28.737149, -81.117726). According to the United States Census Bureau, the CDP has a total area of 32.2 km² (12.4 mi²), of which 29.5 km² (11.4 mi²) is land and 2.7 km² (1.0 mi²) (8.37%) is water. Geneva is on Route 46, located between Lake Harney and Lake Jesup. As of the census of 2010, there were 2,940 people and 1,034 households residing in