Mayor Lloyd Winnecke says “Summer of Swimming” will be the focus of the Energize Evansville monthly “Fitness in the Park” program during June, July and August. The first in a series of three free pool exercise sessions is this Saturday from 9 to 11 a.m. at Hartke Pool, featuring water Aerobics with YMCA Instructors. Participants may join any of the four, 30 minute segments. They'll be on water aerobics, Latin dance, aqua boot camp and shallow-and-deep water cool downs. All fitness levels are invited, and participants can go at their own pace.