BROOKLYN - Experts are advising how to exercise safety in the water after Brooklyn has already encountered two swimming incidents this summer.

Aquatics expert Eric Mitchell says no matter how good of a swimmer one might be, swimming without the presence of a lifeguard will put one?s life at risk.

The Department of Parks and Recreation says there will be about 1,300 lifeguards stationed at beaches across the city this summer. It says it's the largest number of lifeguards ever staffed.

Some parents say they put their children in swimming classes to expose them to the water before heading to the beach.