Sea Lion Aquatic Park, Lisle

Sea Lion Aquatic Park is more of a network than a single pool—the park splits its reservoirs into separate areas for different ages and activities. Six lanes stretch across the 25-yard lap pool, which also serves as home to the Sea Lion swim team. Two body flume slides and two short drop slides send visitors into separate landing pools, and riders enjoy interactive water games at a "splash playground." The leisure pool allows guests to relax while listening to the waterfall. In addition, the vortex pool creates water resistance that's ideal for water aerobics; but turn the other way, and it becomes a mini lazy river.

The park also offers birthday parties and pool rentals. Special events take place throughout the summer, including a cardboard boat regatta for all ages and a Christmas in July celebration.