A huge park that's truly preserved nature. Trails lead every which way into a quasi-forest, where you can seek creeks and little waterfalls. Many places to sit by the grass or just hike your way around.
Also offering swimming in the form of a public pool complex in the middle of the park and a natural lake as well.
Don't be frightened by the McDonald's that dominates the park entrance. You'll soon be past it and among the trees.