Today Esther Beach is a small neighborhood beach prone to problems with weeds due to its orientation to Turville Bay. Prevailing winds tend to blow pieces of floating aquatic vegetation and other debris into this area.
The beach itself is about 70 feet long by 50 feet wide, with a 7.5% average slope. During 2005 through 2009, the beach was closed 12 times (29 days) for high levels of blue green algae, and 7 times (19 days) for high bacteria levels. It is currently listed on the EPA's 303(d) list of impaired beaches for high bacteria levels.
Note that all Lake Monona beaches were closed for a week in 2008 due to a raw sewage release from an MMSD pumping station.
Image from Bing™ © Microsoft 2010
More information is available on the Public Health, Madison & Dane County website